AMatch the modals or modal perfects in I with their uses in II.
III
1. Shall I help you with that heavy bag? ..... a. a logical conclusion about a past event
2. You should have done all the homework. ..... b. formal request
3. She didn’t answer the phone so she ..... c. prohibition
must have left...... d. offer
4. I need to clean my room. I promised my ..... e. unfulfilled expectation
mum that I would. ..... f. obligation
5. I think that they might have left. ..... g. advice which was not followed
6. Would you sign your name here, please? ..... h. a guess about something which happened
7. It’s not fair. I ought to have received a prize too.
8. You mustn’t use this computer.
BChoose the correct answer.
1. She (could walk / could have walked) before she was a year old.
2. The party was supposed to be a secret. You (shouldn’t say / shouldn’t have said) anything.
3. I’m not sure, but I (might leave / might have left) early tonight.
4. I’m not afraid to go alone. You (needn’t have come / needn’t come) with me.
5. It’s late. You (must be / must have been) very tired.
6. You (ought to introduce / ought to have introduced) me to your friends. I didn’t know anyone’s name.
CComplete the sentences with the correct form of the verbs in brackets. Use a modal perfect.
1. Nobody told her anything about the argument. She ....................................... (know) about it.
2. We arrived too early. We ....................................... (be) in such a hurry.
3. She ....................................... (leave) the office because her coat and bag aren’t here.
4. I ....................................... (drive) to work, but the weather was so nice that I decided to walk.
5. It’s possible that I ....................................... (forget) to tell Joe about the meeting.
6. You ....................................... (call) her on her birthday. She never forgets to call you.
DRewrite each sentence using a modal or modal perfect. There may be more than one answer.
1. It isn’t necessary for them to finish the job tonight.
They ......................................................................................................................
2. It’s possible that I took your jacket by mistake.
I ......................................................................................................................
3. That man knows how to speak four languages.
That man ......................................................................................................................
4. I didn’t wear a sunhat, and now my head hurts.
My head hurts. I ......................................................................................................................
5. It rained last night so the grass is wet.
It ...................................................................................................................... . The grass is wet.
6. The man you saw wasn’t Jack. He’s been abroad since the summer.
You ......................................................................................................................
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Modals and Modal Perfects