Grammar Points

Present Continuous

FORM

[am/is/are + present participle]

Examples:

• You are watching TV.
• Are you watching TV?
• You are not watching TV.

Complete List of Present Continuous Forms

USE 1 Now

Use the Present Continuous with Normal Verbs to express the idea that something is happening now, at this very moment. It can also be used to show that something is not happening now.

Examples:

• You are learning English now.
• You are not swimming now.
• Are you sleeping?
• I am sitting.
• I am not standing.
• Is he sitting or standing?
• They are reading their books.
• They are not watching television.
• What are you doing?
• Why aren't you doing your homework?

USE 2 Longer Actions in Progress Now

In English, "now" can mean: this second, today, this month, this year, this century, and so on. Sometimes, we use the Present Continuous to say that we are in the process of doing a longer action which is in progress; however, we might not be doing it at this exact second.

Examples: (All of these sentences can be said while eating dinner in a restaurant.)

• I am studying to become a doctor.
• I am not studying to become a dentist.
• I am reading the book Tom Sawyer.
• I am not reading any books right now.
• Are you working on any special projects at work?
• Aren't you teaching at the university now?

USE 3 Near Future

Sometimes, speakers use the Present Continuous to indicate that something will or will not happen in the near future.

Examples:

• I am meeting some friends after work.
• I am not going to the party tonight.
• Is he visiting his parents next weekend?
• Isn't he coming with us tonight?

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Past Continuous

FORM

[was/were + present participle]

Examples:

• You were studying when she called.
• Were you studying when she called?
• You were not studying when she called.

Complete List of Past Continuous Forms

USE 1 Interrupted Action in the Past

Use the Past Continuous to indicate that a longer action in the past was interrupted. The interruption is usually a shorter action in the Simple Past. Remember this can be a real interruption or just an interruption in time.

Examples:

• I was watching TV when she called.
• When the phone rang, she was writing a letter.
• While we were having the picnic, it started to rain.
• What were you doing when the earthquake started?
• I was listening to my iPod, so I didn't hear the fire alarm.
• You were not listening to me when I told you to turn the oven off.
• While John was sleeping last night, someone stole his car.
• Sammy was waiting for us when we got off the plane.
• While I was writing the email, the computer suddenly went off.
• A: What were you doing when you broke your leg?
  B: I was snowboarding.

USE 2 Specific Time as an Interruption

In USE 1, described above, the Past Continuous is interrupted by a shorter action in the Simple Past. However, you can also use a specific time as an interruption.

Examples:

• Last night at 6 PM, I was eating dinner.
• At midnight, we were still driving through the desert.
• Yesterday at this time, I was sitting at my desk at work.

IMPORTANT

In the Simple Past, a specific time is used to show when an action began or finished. In the Past Continuous, a specific time only interrupts the action.

Examples:

• Last night at 6 PM, I ate dinner.
  I started eating at 6 PM.
• Last night at 6 PM, I was eating dinner.
  I started earlier; and at 6 PM, I was in the process of eating dinner.

While vs. When

When you talk about things in the past, "when" is most often followed by the verb tense Simple Past, whereas "while" is usually followed by Past Continuous. "While" expresses the idea of "during that time." Study the examples below. They have similar meanings, but they emphasize different parts of the sentence.

Examples:

• I was studying when she called.
• While I was studying, she called.

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Say or Tell?

Say and tell have similar meanings. They both mean to communicate verbally with someone. But we often use them differently.

The simple way to think of say and tell is:

• You say something
• You tell someone something

You say something	You tell someone something
Ram said that he was tired.	Ram told Jane that he was tired.
Anthony says you have a new job.	Anthony tells me you have a new job.
Tara said: "I love you."	Tara told John that she loved him.

But, of course, it is not always so easy. Here are a few rules to help you.

Personal object
We usually follow tell with a personal object (the person that we are speaking to). We usually use say without a personal object:

• She told me that she loved John.
• She said that she loved John.
• He told everybody that he had to leave.
• He said that he had to leave.

Say "to someone"
With say, we sometimes use "to someone":

• He said to me that he was tired.
• Tara said to Ram that he had done very well.
• Anthony said to her, "I hope you come soon."
• "I'd like to sleep," she said to him quietly.

Direct speech
We can use say with direct speech. We use tell only with direct speech that is an instruction or information:

• Amanda said, "Hello John. How are you?"
• "That's great'" she said.
• He told her: "Open the door quietly."
• She told me, "I have never been to England."

We can use say with direct questions, but we cannot use tell:

• She said: "Do you love me?"
• The policeman said to the prisoner, "Where were you at 8pm?"

Reported speech
We can use say and tell to talk about reported information:

• She said that it was raining.
• She told me that she would call at 2pm.

We cannot use say or tell to talk about reported questions. We must use ask (or a similar verb):

• She asked if I had ever been there.
• They asked what I wanted to eat.
• She asked where he lived.
• He asked if she wanted to go home.

Orders, advice
We use tell + object + infinitive for orders or advice:

• She told him to sit down.
• They told me not to wait.
• Tell Neil to have a holiday and forget her.

Phrases
Here are a few fixed phrases with tell. We cannot use say with these phrases:

• tell (someone) a story
• tell (someone) a lie
• tell (someone) the truth
• tell the future (= to know what the future will bring)
• tell the time (= know how to read a clock)

Transitional words and phrases

Addition:
also, again, as well as, besides, coupled with, furthermore, in addition, likewise, moreover, similarly

When there is a trusting relationship coupled with positive reinforcement, the partners will be able to overcome difficult situations.

Consequence:
accordingly, as a result, consequently, for this reason, for this purpose,
hence, otherwise, so then, subsequently, therefore, thus, thereupon, wherefore

Highway traffic came to a stop as a result of an accident that morning.

Contrast and Comparison:
contrast, by the same token, conversely, instead, likewise,
on one hand, on the other hand, on the contrary, rather,
similarly, yet, but, however, still, nevertheless, in contrast

The children were very happy. On the other hand, and perhaps more importantly, their parents were very proactive in providing good care.

Emphasis

above all, chiefly, with attention to, especially, particularly, singularly

The Quakers gathered each month with attention to deciding the business of their Meeting.

Exception:
aside from, barring, beside, except, excepting, excluding, exclusive of, other than, outside of, save

Consensus was arrived at by all of the members exclusive of those who could not vote.

Exemplifying:chiefly, especially, for instance, in particular, markedly, namely,
particularly, including, specifically, such as

Some friends and I drove up the beautiful coast chiefly to avoid the heat island of the city.

Generalizing:
as a rule, as usual, for the most part, generally, generally speaking, ordinarily, usually

There were a few very talented artists in the class, but for the most part the students only wanted to avoid the alternative course.

Illustration:
for example, for instance, for one thing, as an illustration,
illustrated with, as an example, in this case

The chapter provided complex sequences and examples illustrated with a very simple schematic diagram.

Similarity:
comparatively, coupled with, correspondingly, identically, likewise, similar, moreover, together with

The research was presented in a very dry style though was coupled with examples that made the audience tear up.

Restatement:
in essence, in other words, namely, that is, that is to say, in short, in brief, to put it differently

In their advertising business, saying things directly was not the rule. That is to say, they tried to convey the message subtly though with creativity.

Sequence:
at first, first of all, to begin with, in the first place, at the same time,
for now, for the time being, the next step, in time, in turn, later on,
meanwhile, next, then, soon, the meantime, later, while, earlier,
simultaneously, afterward, in conclusion, with this in mind,

The music had a very retro sound but at the same time incorporated a complex modern rhythm.

Summarizing:
after all, all in all, all things considered, briefly, by and large, in any case, in any event,
in brief, in conclusion, on the whole, in short, in summary, in the final analysis,
in the long run, on balance, to sum up, to summarize, finally

She didn't seem willing to sell the car this week, but in any case I don't get paid until the end of the month.

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Present Perfect

FORM

[has/have + past participle]

Examples:

• You have seen that movie many times.
• Have you seen that movie many times?
• You have not seen that movie many times.

USE 1 Unspecified Time Before Now

We use the Present Perfect to say that an action happened at an unspecified time before now. The exact time is not important. You CANNOT use the Present Perfect with specific time expressions such as: yesterday, one year ago, last week, when I was a child, when I lived in Japan, at that moment, that day, one day, etc. We CAN use the Present Perfect with unspecific expressions such as: ever, never, once, many times, several times, before, so far, already, yet, etc.

Examples:

• I have seen that movie twenty times.
• I think I have met him once before.
• There have been many earthquakes in California.
• People have traveled to the Moon.
• People have not traveled to Mars.
• Have you read the book yet?
• Nobody has ever climbed that mountain.
• A: Has there ever been a war in the United States?
  B: Yes, there has been a war in the United States.

How Do You Actually Use the Present Perfect?

The concept of "unspecified time" can be very confusing to English learners. It is best to associate Present Perfect with the following topics:

TOPIC 1 Experience

You can use the Present Perfect to describe your experience. It is like saying, "I have the experience of..." You can also use this tense to say that you have never had a certain experience. The Present Perfect is NOT used to describe a specific event.

Examples:

• I have been to France.
  This sentence means that you have had the experience of being in France. Maybe you have been there once, or several times.
• I have been to France three times.
  You can add the number of times at the end of the sentence.
• I have never been to France.
  This sentence means that you have not had the experience of going to France.
• I think I have seen that movie before.
• He has never traveled by train.
• Joan has studied two foreign languages.
• A: Have you ever met him?
  B: No, I have not met him.

TOPIC 2 Change Over Time

We often use the Present Perfect to talk about change that has happened over a period of time.

Examples:

• You have grown since the last time I saw you.
• The government has become more interested in arts education.
• Japanese has become one of the most popular courses at the university since the Asian studies program was established.
• My English has really improved since I moved to Australia.

TOPIC 3 Accomplishments

We often use the Present Perfect to list the accomplishments of individuals and humanity. You cannot mention a specific time.

Examples:

• Man has walked on the Moon.
• Our son has learned how to read.
• Doctors have cured many deadly diseases.
• Scientists have split the atom.

TOPIC 4 An Uncompleted Action You Are Expecting

We often use the Present Perfect to say that an action which we expected has not happened. Using the Present Perfect suggests that we are still waiting for the action to happen.

Examples:

• James has not finished his homework yet.
• Susan hasn't mastered Japanese, but she can communicate.
• Bill has still not arrived.
• The rain hasn't stopped.

TOPIC 5 Multiple Actions at Different Times

We also use the Present Perfect to talk about several different actions which have occurred in the past at different times. Present Perfect suggests the process is not complete and more actions are possible.

Examples:

• The army has attacked that city five times.
• I have had four quizzes and five tests so far this semester.
• We have had many major problems while working on this project.
• She has talked to several specialists about her problem, but nobody knows why she is sick.

Time Expressions with Present Perfect

When we use the Present Perfect it means that something has happened at some point in our lives before now. Remember, the exact time the action happened is not important.

Sometimes, we want to limit the time we are looking in for an experience. We can do this with expressions such as: in the last week, in the last year, this week, this month, so far, up to now, etc.

Examples:

• Have you been to Mexico in the last year?
• I have seen that movie six times in the last month.
• They have had three tests in the last week.
• She graduated from university less than three years ago. She has worked for three different companies so far.
• My car has broken down three times this week.

NOTICE

"Last year" and "in the last year" are very different in meaning. "Last year" means the year before now, and it is considered a specific time which requires Simple Past. "In the last year" means from 365 days ago until now. It is not considered a specific time, so it requires Present Perfect.

Examples:

• I went to Mexico last year.
  I went to Mexico in the calendar year before this one.
• I have been to Mexico in the last year.
  I have been to Mexico at least once at some point between 365 days ago and now.

USE 2 Duration From the Past Until Now (Non-Continuous Verbs)

With Non-Continuous Verbs and non-continuous uses of Mixed Verbs, we use the Present Perfect to show that something started in the past and has continued up until now. "For five minutes," "for two weeks," and "since Tuesday" are all durations which can be used with the Present Perfect.

Examples:

• I have had a cold for two weeks.
• She has been in England for six months.
• Mary has loved chocolate since she was a little girl.

Although the above use of Present Perfect is normally limited to Non-Continuous Verbs and non-continuous uses of Mixed Verbs, the words "live," "work," "teach," and "study" are sometimes used in this way even though they are NOT Non-Continuous Verbs.

Signal Words of Present Perfect

• already, ever, just, never, not yet, so far, till now, up to now

Emphasis on completion or duration?

Do you want to emphasise the completion of an action or its continuous course (how has somebody spent his time)?

Present Perfect Simple	Present Perfect Progressive
Emphasis on completion I have done my homework. (Meaning: My homework is completed now.)	Emphasis on duration I have been doing my homework. (Meaning: That's how I have spent my time. It does not matter whether the homework is completed now.)

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Prepositions of Time: at, in, on

We use:

• at for a PRECISE TIME
• in for MONTHS, YEARS, CENTURIES and LONG PERIODS
• on for DAYS and DATES

at	in	on
PRECISE TIME	MONTHS, YEARS, CENTURIES and LONG PERIODS	DAYS and DATES
at 3 o'clock	in May	on Sunday
at 10.30am	in summer	on Tuesdays
at noon	in the summer	on 6 March
at dinnertime	in 1990	on 25 Dec. 2010
at bedtime	in the 1990s	on Christmas Day
at sunrise	in the next century	on Independence Day
at sunset	in the Ice Age	on my birthday
at the moment	in the past/future	on New Year's Eve

Look at these examples:

• I have a meeting at 9am.
• The shop closes at midnight.
• Jane went home at lunchtime.
• In England, it often snows in December.
• Do you think we will go to Jupiter in the future?
• There should be a lot of progress in the next century.
• Do you work on Mondays?
• Her birthday is on 20 November.
• Where will you be on New Year's Day?

Notice the use of the preposition of time at in the following standard expressions:

Expression	Example
at night	The stars shine at night.
at the weekend*	I don't usually work at the weekend.
at Christmas*/Easter	I stay with my family at Christmas.
at the same time	We finished the test at the same time.
at present	He's not home at present. Try later.

Notice the use of the prepositions of time in and on in these common expressions:

in	on
in the morning	on Tuesday morning
in the mornings	on Saturday mornings
in the afternoon(s)	on Sunday afternoons
in the evening(s)	on Monday evening

When we say last, next, every, this we do not also use at, in, on.

• I went to London last June. (not in last June)
• He's coming back next Tuesday. (not on next Tuesday)
• I go home every Easter. (not at every Easter)
• We'll call you this evening. (not in this evening)

Prepositions of Place: at, in, on

In general, we use:

• at for a POINT
• in for an ENCLOSED SPACE
• on for a SURFACE

at	in	on
POINT	ENCLOSED SPACE	SURFACE
at the corner	in the garden	on the wall
at the bus stop	in London	on the ceiling
at the door	in France	on the door
at the top of the page	in a box	on the cover
at the end of the road	in my pocket	on the floor
at the entrance	in my wallet	on the carpet
at the crossroads	in a building	on the menu
at the front desk	in a car	on a page

Look at these examples:

• Jane is waiting for you at the bus stop.
• The shop is at the end of the street.
• My plane stopped at Dubai and Hanoi and arrived in Bangkok two hours late.
• When will you arrive at the office?
• Do you work in an office?
• I have a meeting in New York.
• Do you live in Japan?
• Jupiter is in the Solar System.
• The author's name is on the cover of the book.
• There are no prices on this menu.
• You are standing on my foot.
• There was a "no smoking" sign on the wall.
• I live on the 7th floor at 21 Oxford Street in London.

Notice the use of the prepositions of place at, in and on in these standard expressions:

at	in	on
at home	in a car	on a bus
at work	in a taxi	on a train
at school	in a helicopter	on a plane
at university	in a boat	on a ship
at college	in a lift (elevator)	on a bicycle, on a motorbike
at the top	in the newspaper	on a horse, on an elephant
at the bottom	in the sky	on the radio, on television
at the side	in a row	on the left, on the right
at reception	in Oxford Street	on the way

Prepositions – Time

English	Usage	Example
on	days of the week	on Monday
in	months / seasons time of day year after a certain period of time (when?)	in August / in winter in the morning in 2006 in an hour
at	for night for weekend a certain point of time (when?)	at night at the weekend at half past nine
since	from a certain point of time (past till now)	since 1980
for	over a certain period of time (past till now)	for 2 years
ago	a certain time in the past	2 years ago
before	earlier than a certain point of time	before 2004
to	telling the time	ten to six (5:50)
past	telling the time	ten past six (6:10)
to / till / until	marking the beginning and end of a period of time	from Monday to/till Friday
till / until	in the sense of how long something is going to last	He is on holiday until Friday.
by	in the sense of at the latest up to a certain time	I will be back by 6 o’clock. By 11 o'clock, I had read five pages.

Prepositions – Place (Position and Direction)

English	Usage	Example
in	room, building, street, town, country book, paper etc. car, taxi picture, world	in the kitchen, in London in the book in the car, in a taxi in the picture, in the world
at	meaning next to, by an object for table for events place where you are to do something typical (watch a film, study, work)	at the door, at the station at the table at a concert, at the party at the cinema, at school, at work
on	attached for a place with a river being on a surface for a certain side (left, right) for a floor in a house for public transport for television, radio	the picture on the wall London lies on the Thames. on the table on the left on the first floor on the bus, on a plane on TV, on the radio
by, next to, beside	left or right of somebody or something	Jane is standing by / next to / beside the car.
under	on the ground, lower than (or covered by) something else	the bag is under the table
below	lower than something else but above ground	the fish are below the surface
over	covered by something else meaning more than getting to the other side (also across) overcoming an obstacle	put a jacket over your shirt over 16 years of age walk over the bridge climb over the wall
above	higher than something else, but not directly over it	a path above the lake
across	getting to the other side (also over) getting to the other side	walk across the bridge swim across the lake
through	something with limits on top, bottom and the sides	drive through the tunnel
to	movement to person or building movement to a place or country for bed	go to the cinema go to London / Ireland go to bed
into	enter a room / a building	go into the kitchen / the house
towards	movement in the direction of something (but not directly to it)	go 5 steps towards the house
onto	movement to the top of something	jump onto the table
from	in the sense of where from	a flower from the garden

Other important Prepositions

English	Usage	Example
from	who gave it	a present from Jane
of	who/what does it belong to what does it show	a page of the book the picture of a palace
by	who made it	a book by Mark Twain
on	walking or riding on horseback entering a public transport vehicle	on foot, on horseback get on the bus
in	entering a car  / Taxi	get in the car
off	leaving a public transport vehicle	get off the train
out of	leaving a car  / Taxi	get out of the taxi
by	rise or fall of something travelling (other than walking or horseriding)	prices have risen by 10 percent by car, by bus
at	for age	she learned Russian at 45
about	for topics, meaning what about	we were talking about you

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Comparatives and Superlatives

Form the comparative and superlative forms of a one-syllable adjective by adding –er for the comparative form and –est for the superlative.

One-Syllable Adjective	Comparative Form	Superlative Form
tall	taller	tallest
old	older	oldest
long	longer	longest

• Mary is taller than Max.
• Mary is the tallest of all the students.
• Max is older than John.
• Of the three students, Max is the oldest.
• My hair is longer than your hair.
• Max's story is the longest story I've ever heard.

If the one-syllable adjective ends with an e, just add –r for the comparative form and –st for the superlative form.

One-Syllable Adjective with Final -e	Comparative Form	Superlative Form
large	larger	largest
wise	wiser	wisest

• Mary's car is larger than Max's car.
• Mary's house is the tallest of all the houses on the block.
• Max is wiser than his brother.
• Max is the wisest person I know.

If the one-syllable adjective ends with a single consonant with a vowel before it, double the consonant and add –er for the comparative form; and double the consonant and add –est for the superlative form.

One-Syllable Adjective Ending with a Single Consonant with a Single Vowel before It	Comparative Form	Superlative Form
big	bigger	biggest
thin	thinner	thinnest
fat	fatter	fattest

• My dog is bigger than your dog.
• My dog is the biggest of all the dogs in the neighborhood.
• Max is thinner than John.
• Of all the students in the class, Max is the thinnest.
• My mother is fatter than your mother.
• Mary is the fattest person I've ever seen.

Two-syllable adjectives.

With most two-syllable adjectives, you form the comparative with more and the superlative with most.

Two-Syllable Adjective	Comparative Form	Superlative Form
peaceful	more peaceful	most peaceful
pleasant	more pleasant	most pleasant
careful	more careful	most careful
thoughtful	more thoughtful	most thoughtful

• This morning is more peaceful than yesterday morning.
• Max's house in the mountains is the most peaceful in the world.
• Max is more careful than Mike.
• Of all the taxi drivers, Jack is the most careful.
• Jill is more thoughtful than your sister.
• Mary is the most thoughtful person I've ever met.

If the two-syllable adjectives ends with –y, change the y to i and add –er for the comparative form. For the superlative form change the y to i and add –est.

Two-Syllable Adjective Ending with -y	Comparative Form	Superlative Form
happy	happier	happiest
angry	angrier	angriest
busy	busier	busiest

• John is happier today than he was yesterday.
• John is the happiest boy in the world.
• Max is angrier than Mary.
• Of all of John's victims, Max is the angriest.
• Mary is busier than Max.
• Mary is the busiest person I've ever met.

Two-syllable adjectives ending in –er, -le, or –ow take –er and –est to form the comparative and superlative forms.

Two-Syllable Adjective Ending with -er, -le, or -ow	Comparative Form	Superlative Form
narrow	narrower	narrowest
gentle	gentler	gentlest

• The roads in this town are narrower than the roads in the city.
• This road is the narrowest of all the roads in California.
• Big dogs are gentler than small dogs.
• Of all the dogs in the world, English Mastiffs are the gentlest.

Adjectives with three or more syllables.

For adjectives with three syllables or more, you form the comparative with more and the superlative with most.

Adjective with Three or More Syllables	Comparative Form	Superlative Form
generous	more generous	most generous
important	more important	most important
intelligent	more intelligent	most intelligent

• John is more generous than Jack.
• John is the most generous of all the people I know.
• Health is more important than money.
• Of all the people I know, Max is the most important.
• Women are more intelligent than men.
• Mary is the most intelligent person I've ever met.

Exceptions.

Irregular adjectives.

Irregular Adjective	Comparative Form	Superlative Form
good	better	best
bad	worse	worst
far	farther	farthest
little	less	least
many	more	most

• Italian food is better than American food.
• My dog is the best dog in the world.
• My mother's cooking is worse than your mother's cooking.
• Of all the students in the class, Max is the worst.

Two-syllable adjectives that follow two rules. These adjectives can be used with -er and -est and with more and most.

Two-Syllable Adjective	Comparative Form	Superlative Form
clever	cleverer	cleverest
clever	more clever	most clever
gentle	gentler	gentlest
gentle	more gentle	most gentle
friendly	friendlier	friendliest
friendly	more friendly	most friendly
quiet	quieter	quietest
quiet	more quiet	most quiet
simple	simpler	simplest
simple	more simple	most simple

• Big dogs are gentler than small dogs.
• Of all the dogs in the world, English Mastiffs are the gentlest.
• Big dogs are more gentle than small dogs.
• Of all the dogs in the world, English Mastiffs are the most gentle.

Verb Tense Review and Exercises

Here is a helpful table with the tenses, a quick explanation and some helpful words/phrases associated with each of them.

	Past	Present	Future
Simple	An action that ended at a point in the past.	An action that exists , is usual, or is repeated.	A plan for future action.
	cooked	cook / cooks	will cook
(time clue)*	e.g. He cooked yesterday.	e.g. He cooks dinner every Friday.	e.g. He will cook tomorrow.
Progressive be + main verb +ing	An action was happening (past progressive) when another action happened (simple past).	An action that is happening now.	An action that will be happening over time, in the future, when something else happens.
	was / were cooking	am / is / are cooking	will be cooking
(time clue)*	e.g. He was cooking when the phone rang.	e.g. He is cooking now.	e.g. He will be cooking when you come.
Perfect have + main verb	An action that ended before another action or time in the past.	An action that happened at an unspecified time in the past.	An action that will end before another action or time in the future.
	had cooked	has / have cooked	will have cooked
(time clue)*	e.g. He had cooked the dinner when the phone rang.	e.g. He has cooked many meals.	e.g. He will have cooked dinner by the time you come.
Perfect Progressive have + be + main verb + ing	An action that happened over time, in the past, before another time or action in the past.	An action occurring over time that started in the past and continues into the present.	An action occurring over time, in the future, before another action or time in the future.
	had been cooking	has / have been cooking	will have been cooking
(time clue)*	e.g. He had been cooking for a long time before he took lessons.	e.g. He has been cooking for over an hour.	e.g. He will have been cooking all day by the time she gets home.

*Time clues: these are words that give some information about when an action occurs. Some examples are:

yesterday every day tomorrow while now

simple past simple present simple future past progressive present progressive

.

There are many words that are time clues; some can be used to indicate a number of tenses, for instance that something happened in the past or that it will happen in the future. If you learn to recognize these time clues, you will find them very helpful. Note that some time clues can be used with more than one verb tense and also that this table is not a complete listing of all the time clues that can be used with all of the tenses

CHART—TIME CLUES AND VERB TENSE

	Past	Present	Future
Simple	Simple Past	Simple Present	Simple Future
	yesterday last year/ month/ etc. before for five weeks/days/etc. one year/ month ago	every morning / day / etc. always usually frequently sometimes	tomorrow tonight next week/month/etc. soon in the future
Progressive	Past Progressive	Present Progressive	Future progressive
	while when	now right now this week/minute/etc.	when after as soon as before
Perfect	Past Perfect	Present Perfect	Future Perfect
	before already by the time until then/last week/etc. after	until now since ever never many times/ weeks/years/etc. for three hours/ minutes/etc/	by the time you go (somewhere) by the time you do (something) already
Perfect Progressive	Past Perfect progressive	Present Perfect Progressive	Future Perfect Progressive
	before for one week/hour/etc. since	for the past year/ month/ etc. for the last 2 months/ weeks/etc. up to now for 6 weeks/hours/etc. since	by the time for ten days/weeks/etc. by