present perfect form.docx

7/27/2019 Present Perfect Form.docx

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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.

Complete List of Present Perfect Forms

USE 1 Unspecified Time Before Now

We use the Present Perfect to say that an action happened at an unspecified time before now. The exacttime 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 everclimbed that mountain.

A: Has there everbeen 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 associatePresent Perfect with the following topics:

TOPIC 1 Experience
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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 isNOT used to describe a specific event.

Examples:

I have been to France.THIS SENTENCE MEANS THAT YOU HAVE HAD THE EXPERIENCE OF BEING INFRANCE.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 neverbeen 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 nevertraveled by train.

Joan has studied two foreign languages.

A: Have you evermet 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 studiesprogram 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 cannotmention 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 thePresent Perfect suggests that we are still waiting for the action to happen.


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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 atdifferent 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 livesbefore 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 withexpressions 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 differentcompanies so far.

My carhas broken down three times this week.

NOTICE


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"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 requiresSimple Past. "In the last year" means from 365 daysago until now. It is not considered a specific time, so it requires Present Perfect.

Examples:

I went to Mexico last year.IWENT TO MEXICO IN THE CALENDAR YEAR BEFORE THIS ONE.

I have been to Mexico in the last year.IHAVE BEEN TO MEXICO AT LEAST ONCE AT SOME POINT BETWEEN365DAYS AGO AND NOW.

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

WithNon-Continuous Verbsand non-continuous uses ofMixed Verbs, we use the Present Perfect to

show that something started in the past and has continued up until now. "For five minutes," "for twoweeks," 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 thisway even though they are NOT Non-Continuous Verbs.

ADVERB PLACEMENT

The examples below show the placement for grammar adverbs such as: always, only, never, ever, still,just, etc.

Examples:

You have only seen that movie one time.

Have you only seen that movie one time?

ACTIVE / PASSIVE

Examples:

Many tourists have visited that castle.ACTIVE

That castle has been visited by many tourists. PASSIVE
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Past Perfect

Form

[had + past participle]

Examples:

You had studied English before you moved to New York.

Had you studied English before you moved to New York?

You had not studied English before you moved to New York.

Complete List of Past Perfect Forms

USE 1 Completed Action Before Something in the Past

The Past Perfect expresses the idea that something occurred before another action in the past. It canalso show that something happened before a specific time in the past.

Examples:

I had neverseen such a beautiful beach before I went to Kauai.

I did not have any money because I had lost my wallet.

Tony knew Istanbul so well because he had visited the city several times.

Had Susan everstudied Thai before she moved to Thailand?

She only understood the movie because she had read the book.

Kristine had neverbeen to an opera before last night.

We were not able to get a hotel room because we had not booked in advance.

A: Had you evervisited the U.S. before your trip in 2006?B: Yes, I had been to the U.S. once before.

USE 2 Duration Before Something in the Past (Non-Continuous Verbs)

WithNon-Continuous Verbsand some non-continuous uses ofMixed Verbs, we use the Past Perfect toshow that something started in the past and continued up until another action in the past.

Examples:

We had had that car for ten years before it broke down.
http://www.englishpage.com/verbpage/pastperfectforms.htmhttp://www.englishpage.com/verbpage/pastperfectforms.htmhttp://www.englishpage.com/verbpage/types.htmlhttp://www.englishpage.com/verbpage/types.htmlhttp://www.englishpage.com/verbpage/types.htmlhttp://www.englishpage.com/verbpage/types.htmlhttp://www.englishpage.com/verbpage/types.htmlhttp://www.englishpage.com/verbpage/types.htmlhttp://www.englishpage.com/verbpage/types.htmlhttp://www.englishpage.com/verbpage/types.htmlhttp://www.englishpage.com/verbpage/pastperfectforms.htm


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By the time Alex finished his studies, he had been in London for over eight years.

They felt bad about selling the house because they had owned it for more than forty years.

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

IMPORTANT Specific Times with the Past Perfect

Unlike with thePresent Perfect, it is possible to use specific time words or phrases with the Past Perfect.Although this is possible, it is usually not necessary.

Example:

She had visited her Japanese relatives once in 1993 before she moved in with them in 1996.

MOREOVER

If the Past Perfect action did occur at a specific time, the Simple Past can be used instead of the PastPerfect when "before" or "after" is used in the sentence. The words "before" and "after" actually tell youwhat happens first, so the Past Perfect is optional. For this reason, both sentences below are correct.

Examples:

She had visited her Japanese relatives once in 1993 before she moved in with them in 1996.

She visited her Japanese relatives once in 1993 before she moved in with them in 1996.

HOWEVER

If the Past Perfect is not referring to an action at a specific time, Past Perfect is not optional. Compare theexamples below. Here Past Perfect is referring to a lack of experience rather than an action at a specifictime. For this reason, Simple Past cannot be used.

Examples:

She neversaw a bear before she moved to Alaska. Not Correct

She had neverseen a bear before she moved to Alaska. Correct

ADVERB PLACEMENT

The examples below show the placement for grammar adverbs such as: always, only, never, ever, still,just, etc.
http://www.englishpage.com/verbpage/presentperfect.htmlhttp://www.englishpage.com/verbpage/presentperfect.htmlhttp://www.englishpage.com/verbpage/presentperfect.htmlhttp://www.englishpage.com/verbpage/presentperfect.html


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Examples:

You had previously studied English before you moved to New York.

Had you previously studied English before you moved to New York?

ACTIVE / PASSIVE

Examples:

George had repaired many cars before he received his mechanic's license. ACTIVE

Many cars had been repaired by George before he received his mechanic's license. PASSIVE

Verb Tense Exercise 1

Simple Past / Present Perfect

Using the words in parentheses, complete the text below with the appropriate tenses, then click the

"Check" button to check your answers.

1. A: Did you like the movie "Star Wars?"

B: I don't know. I (see, never) that movie.

2. Sam (arrive) in San Diego a week ago.

3. My best friend and I (know) each other for over fifteen years. We still get together once a

week.

4. Stinson is a fantastic writer. He (write) ten very creative short stories in the last year.

One day, he'll be as famous as Hemingway.


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5. I (have, not) this much fun since I (be) a kid.

6. Things (change) a great deal at Coltech, Inc. When we first (start) working

here three years ago, the company (have, only) six employees. Since then, we (expand)

to include more than 2000 full-time workers.

7. I (tell) him to stay on the path while he was hiking, but he (wander) off into

the forest and (be) bitten by a snake.

8. Listen Donna, I don't care if you (miss) the bus this morning. You (be) late

to work too many times. You are fired!

9. Sam is from Colorado, which is hundreds of miles from the coast, so he (see, never) the

ocean. He should come with us to Miami.

10. How sad! George (dream) of going to California before he died, but he didn't make it.

He (see, never) the ocean.

11. In the last hundred years, traveling (become) much easier and very comfortable. In the

19th century, it (take) two or three months to cross North America by covered wagon. The

trip (be) very rough and often dangerous. Things (change) a great deal in

the last hundred and fifty years. Now you can fly from New York to Los Angeles in a matter of hours.


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12. Jonny, I can't believe how much you (change) since the last time I (see)

you. You (grow) at least a foot!

13. This tree (be) planted by the settlers who (found) our city over four

hundred years ago.

14. This mountain (be, never) climbed by anyone. Several mountaineers (try)

to reach the top, but nobody (succeed, ever) . The climb is extremely

difficult and many people (die) trying to reach the summit.

15. I (visit, never) Africa, but I (travel) to South America several times.

The last time I (go) to South America, I (visit) Brazil and Peru. I (spend)

two weeks in the Amazon, (hike) for a week near Machu Picchu, and (fly)

over the Nazca Lines.

Verb Tense Exercise 2

Simple Past / Present Perfect

Using the words in parentheses, complete the text below with the appropriate tenses, then click the"Check" button to check your answers.

Since computers were first introduced to the public in the early 1980's, technology (change)

a great deal. The first computers (be) simple machines designed for basic

tasks. They (have, not) much memory and they (be, not) very powerful.


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Early computers were often quite expensive and customers often (pay) thousands of

dollars for machines which actually (do) very little. Most computers (be)

separate, individual machines used mostly as expensive typewriters or for playing games.

Times (change) . Computers (become) powerful machines with very

practical applications. Programmers (create) a large selection of useful programs which do

everything from teaching foreign languages to bookkeeping. We are still playing video games, but today's

games (become) faster, more exciting interactive adventures. Many computer users (get,

also) on the Internet and (begin) communicating with other computer users

around the world. We (start) to create international communities online. In short, the

simple, individual machines of the past (evolve) into an international World Wide Web of

knowledge.

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