cung cấp giáo viên nước ngoài - 12 tenses in english - present perfect

CUNG CẤP GIÁO VIÊN NƯỚC NGOÀI – PRESENT PERFECT + EXERCISES

FORM - PRESENT PERFECT

[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 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.

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

EXERCISES 1Using 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.

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.

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.


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. 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.


Robin: I think the waiter (forget) us. We (wait) here for

over half an hour and nobody (take) our order yet.

Michele: I think you're right. He (walk) by us at least twenty times. He

probably thinks we (order, already) .

Robin: Look at that couple over there, they (be, only) here for five or ten minutes and they already have their food.

Michele: He must realize we (order, not) yet! We (sit) here for over half an hour staring at him.

Robin: I don't know if he (notice, even) us. He (run) from table to table taking orders and serving food.

Michele: That's true, and he (look, not) in our direction once.

Bottom of Form


1. Judy: How long (be) in Canada?

Claude: I (study) here for more than three years.

2. I (have) the same car for more than ten years. I'm thinking about buying a new one.

3. I (love) chocolate since I was a child. You might even call me a "chocoholic."

4. Matt and Sarah (have) some difficulties in their relationship lately,

so they (go) to a marriage counselor. I hope they work everything out.

5. John (work) for the government since he graduated from Harvard

University. Until recently, he (enjoy) his work, but now he is talking about retiring.

6. Lately, I (think) about changing my career because I

(become) dissatisfied with the conditions at my company.

7. I (see) Judy for more than five years and during that time I

(see) many changes in her personality.


1. When I (arrive) home last night, I discovered that Jane

(prepare) a beautiful candlelight dinner.

2. Since I began acting, I (perform) in two plays, a television

commercial and a TV drama. However, I (speak, never even) publicly before I came to Hollywood in 1985.

3. By the time I got to the office, the meeting (begin, already)

without me. My boss (be) furious with me and I (be) fired.

4. When I (turn) the radio on yesterday, I (hear) a song that

was popular when I was in high school. I (hear, not) the song in years,

and it (bring) back some great memories.

5. Last week, I (run) into an ex-girlfriend of mine. We (see,

not) each other in years, and both of us (change) a great

deal. I (enjoy) talking to her so much that I (ask) her out on a date. We are getting together tonight for dinner.

6. When Jack (enter) the room, I (recognize, not) him

because he (lose) so much weight and (grow) a beard. He looked totally different!

7. The Maya established a very advanced civilization in the jungles of the Yucatan;

however, their culture (disappear, virtually) by the time

Europeans first (arrive) in the New World.

8. I (visit) so many beautiful places since I (come) to Utah.

Before moving here, I (hear, never) of Bryce Canyon, Zion, Arches, or Canyonlands.


1. It is already 9:30 PM and I (wait) here for over an hour. If John does not get here in the next five minutes, I am going to leave.

2. I was really angry at John yesterday. By the time he finally arrived, I

(wait) for over an hour. I almost left without him.

3. Did you hear that Ben was fired last month? He (work) for that

import company for more than ten years and he (work) in almost every department. Nobody knew the company like he did.

4. I (see) many pictures of the pyramids before I went to Egypt. Pictures of the monuments are very misleading. The pyramids are actually quite small.

5. Sarah (climb) the Matterhorn, (sail) around the world,

and (go) on safari in Kenya. She is such an adventurous person.

6. Sarah (climb) the Matterhorn, (sail) around the world

and (go) on safari in Kenya by the time she turned twenty-five. She

(experience) more by that age than most people do in their entire lives.

7. When Melanie came into the office yesterday, her eyes were red and watery. I

think she (cry) .


1.

a. Look, I (have) two tickets for the circus.

b. Look, I (hold) two tickets for the circus.

2.

a. We (be) there for more than half an hour by the time the show began.

b. We (wait) there for more than half an hour by the time the show began.

3.

a. Sam (sit) in the seat next to me when the clown threw a bucket of water at me.

b. Sam (be) in the seat next to me when the clown threw a bucket of water at me.

4.

a. One clown was juggling while he (balance) a glass of wine on his head.

b. One clown was juggling while he (have) a glass of wine on his head.

5.

a. I (love) the circus ever since I was a child.

b. I (go) to the circus ever since I was a child.

6.

a. Right now, I (see) two elephants doing tricks in the ring.

b. Right now, I (look) at two elephants doing tricks in the ring.


Lars: Excuse me, which movie are you waiting for?

Tony: We (wait) for the new Stars Wars movie. In fact, we

(wait) here for more than five hours.

Lars: Five hours? When did you arrive?

Tony: We (get) here at 6:00 o'clock this morning. More than forty

people (stand, already) here waiting for tickets when we arrived.

Lars: I can't believe that! Are you serious?

Tony: Yeah, people (take) Star Wars movies seriously. In fact, this

particular showing has been sold out for over a week. We (wait, just) in line to get a good seat in the theater.

Lars: When did you buy your tickets?

Tony: I (buy) them last week by phone. I (know) tickets

would be hard to get because I (see) a news interview with a group of

people standing in line to get tickets. They (wait) in line for almost a month to buy tickets for the first showing.

Lars: I don't believe that!

Tony: It's true. They (camp) out in front of Mann's Chinese Theater in

Los Angeles for about a month because they (want) to be the first people to see the movie.


1. You look really great! (you, work) out at the fitness center recently?

2. A: What (you, do) when the accident occurred?

B: I (try) to change a light bulb that had burnt out.

3. I (have) the same car for more than ten years. I'm thinking about buying a new one.

4. If it (snow) this weekend, we (go) skiing near Lake Tahoe.

5. A: What do you call people who work in libraries?

B: They (call) librarians.

6. I came to England six months ago. I started my economics course three months

ago. When I return to Australia, I (study) for nine months and I

(be) in England for exactly one year.

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

8. Samantha (live) in Berlin for more than two years. In fact, she

(live) there when the Berlin wall came down.

9. If Vera (keep) drinking, she (lose, eventually) her job.

10. The Maya established a very advanced civilization in the jungles of the

Yucatan; however, their culture (disappear, virtually) by the

time Europeans first (arrive) in the New World.

11. Shhhhh! Be quiet! John (sleep) .

12. It (rain) all week. I hope it stops by Saturday because I want to go to the beach.

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

(be) late to work too many times. You are fired!

14. I am sick of rain and bad weather! Hopefully, when we (wake) up

tomorrow morning, the sun (shine) .

15. I have not traveled much yet; however, I (visit) the Grand Canyon and San Francisco by the time I leave the United States.

16. I (see) many pictures of the pyramids before I went to Egypt. Pictures of the monuments are very misleading. The pyramids are actually quite small.

17. 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.

18. Joseph's English (improve, really) , isn't it? He

(watch) American television programs and (study) his grammar every day since he first arrived in San Diego. Soon he will be totally fluent.

19. When I (arrive) home last night, I discovered that Jane

(prepare) a beautiful candlelight dinner.

20. If you (need) to contact me sometime next week, I

(stay) at the Sheraton in San Francisco.

EXERCISES 10Complete questions 1-10 below with the appropriate tenses, answer questions 11-15, then click the "Check" button to check your answers.

1. When Carol (call) last night, I (watch) my favorite show on television.

2. I (work) for this company for more than thirty years, and I intend to stay here until I retire!

3. Sharon (love) to travel. She (go) abroad almost every summer. Next year, she plans to go to Peru.

4. Thomas is an author. He (write) mystery novels and travel

memoirs. He (write) since he was twenty-eight. Altogether, he

(write) seven novels, three collections of short stories and a book of poetry.

5. We were late because we had some car problems. By the time we

(get) to the train station, Susan (wait) for us for more than two hours.

6. Sam (try) to change a light bulb when he (slip) and

(fall) .

7. Everyday I (wake) up at 6 o'clock, (eat) breakfast at 7

o'clock and (leave) for work at 8 o'clock. However, this morning I

(get) up at 6:30, (skip) breakfast and (leave)

for work late because I (forget) to set my alarm.

8. Right now, Jim (read) the newspaper and Kathy

(make) dinner. Last night at this time, they (do) the same

thing. She (cook) and he (read) the newspaper.

Tomorrow at this time, they (do, also) the same thing. She

(prepare) dinner and he (read) . They are very predictable people!

9. By this time next summer, you (complete) your studies and

(find) a job. I, on the other hand, (accomplish,

not) anything. I (study, still) and you

(work) in some new high paying job.

10. The students (be, usually) taught by Mrs. Monty. However, this

week they (teach) taught by Mr. Tanzer.

* * * * * * * * * * * *

11. Jane talks on the phone. Bob has been talking on the phone for an hour. Mary is talking on the phone.

Who is not necessarily on the phone now?

12. I'm going to make dinner for Frank.I'm making dinner for Judy.I'll make dinner for Mary.

I make dinner for Ted.I will be making dinner for Tony.

Who are you offering to make dinner for?

13.Jane left when Tim arrived. Bob left when Tim had arrived. When Tim arrived, Mary was leaving. John had left when Tim arrived. After Tim arrived, Frank left.

Who did not run into Tim?

14.Jane is talking in class. Bob always talks in class. Mary is always talking in class.

Whose action bothers you?

15.Jane never left Jamestown. Bob has never left Jamestown.

Who is still alive?

Giới thiệu công ty:

Dịch vụ cung cấp giáo viên nước ngoài thông qua các gói part-time, full-

time và argent sẽ giúp khách hàng có nhiều sự lựa chọn phù hợp cho mình.

Điều này sẽ giúp khách hàng tiết kiệm thời gian và chi phí trong việc tìm đối

tác cung cấp giáo viên nước ngoài, chương trình học phù hợp, nhưng vẫn đạt

được kết quả như mong muốn: các chương trình tiếng Anh Face to Face,

Tiếng Anh cho Mầm non-tiểu học, Tiếng Anh doanh nghiệp. Bên cạnh đó,

công ty còn thiết kế những chương trình học đặc biệt theo từng nhu cầu học

của khách hàng, chương trình học Tiếng Anh phù hợp với các tổ chức, cá

nhân và những người có nhu cầu sử dụng tiếng anh trong môi trường làm

việc nước ngoài.

Với nguồn giáo viên ổn định đến từ các nước Anh, Mỹ, Úc, Cananda, đội ngũ

giáo viên đều tốt nghiệp các trường đại học và đầy đủ chứng chỉ giảng dạy

trên thế giới (CELTA, TESOL). Đồng thời, giáo viên sẽ được phỏng vấn

chọn lọc và đào tạo kỹ càng để phù hợp với việc giảng dạy tiếng Anh tại Việt

Nam.

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cung cấp giáo viên nước ngoài - 12 tenses in english - present perfect

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