Unit 34: I have to …

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GRAMMAR
EXAMPLES
EXERCISES

A. I have to do something = it is necessary for me to do it, I am obliged to do it

This is my medicine. I have to take it four times a day.
I/we/you/theyhaveto do
to work
to go
to wear
etc.
he/she/ithas
I’ll be late for work tomorrow. I have to go to the dentist.
Jill starts work at 7 o’clock, so she has to get up at 6.
You have to pass a test before you can get a driving licence.

B. The past (yesterday / last week etc.) is had to …

I was late for work yesterday. I had to go to the dentist.
We had to walk home last night. There were no buses.

C. In questions and negatives we use do/does (present) and did (past):

present do I/we/you/they have to … ? don’t I/we/you/they have to …
does he/she/it have to … ? doesn’t he/she/it have to …
past did I/we/you/they have to … ? didn’t I/we/you/they have to …
What time do you have to go to the dentist tomorrow?
Does Jill have to work on Sundays?
Why did they have to leave the party early?

D. I don’t have to (do something) = it is not necessary to do it:

I’m not working tomorrow, so I don’t have to get up early.
Ian doesn’t have to work very hard. He’s got an easy job.
We didn’t have to wait very long for the bus.

E. must and have to

Use must or have to when you say what you think is necessary, when you give your opinion:

It’s a fantastic film. You must see it. or You have to see it.

When you are not giving your personal opinion, use have to (not must):

Jill won’t be at work this afternoon. She has to go to the doctor. (this is not my personal opinion – it is a fact)
In many countries, men have to do military service. (this is not my opinion – it is the law in those countries)
must / mustn’t / needn’t → UNIT 32

Examples

I have to take it four times a day.
I have to go to the dentist.
She has to get up at 6.
You have to pass a test.
I had to go to the dentist.
We had to walk home last night.
Do you have to go to the dentist tomorrow?
I don’t have to get up early.
Ian doesn’t have to work very hard.
We didn’t have to wait very long.

Exercises 34.1 – 34.6

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34.1 Complete the sentences. Use have to or has to + one of these verbs:

do
read
speak
travel
wear
  1. My eyes are not very good. I have to wear glasses.
  2. At the end of the course all the students a test.
  3. Mary is studying literature. She a lot of books.
  4. Albert doesn’t understand much English. You very slowly to him.
  5. Kate is not often at home. She a lot in her job.
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34.2 Complete the sentences. Use have to or had to + one of these verbs:

answer
buy
change
go
walk
  1. We had to walk home last night. There were no buses.
  2. It’s late. I now.
  3. I went to the supermarket after work yesterday. I some food.
  4. This train doesn’t go all the way to London. You at Bristol.
  5. We did an exam yesterday. We six questions out of ten.
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34.3 Complete the questions. Some are present and some are past.

1. I have to get up early tomorrow.
What time do you have to get up?
2. George had to wait a long time.
How long ?
3. Liz has to go somewhere now.
Where ?
4. We had to pay a lot of money.
How much ?
5. I have to do some work.
What exactly ?
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34.4 Write sentences with don’t/doesn’t/didn’t have to …

  1. Why are you going out? You don’t have to go out.
  2. Why is Ann waiting? She .
  3. Why did you get up early? You early.
  4. Why is Paul working so hard? He so hard.
  5. Why do you want to leave now? We now.
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34.5 Which is correct? Sometimes must and have to are both correct.

  1. It’s a great film. You must see / have to see it. both are correct
  2. In many countries, men military service.
  3. You can’t park your car here for nothing. You .
  4. I didn’t have any money with me last night, so I some.
  5. I eat too much chocolate. I really .
  6. ‘Why is Paula going now?’ ‘She somebody.’
  7. What’s wrong? You me. I want to help you.
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34.6 Write some things that you (or your friends or family) have to do or had to do.

  1. (every day) I have to travel ten miles every day.
  2. (every day)
  3. (tomorrow)
  4. (yesterday)

Unit 34: I have to … • Full Interactive Textbook