1. Perfect Modals
A. Rewrite the sentences using the modal verbs in brackets.
1. It was possible that Jane visited Switzerland last year. (could)
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2. Carl was thinking about taking Spanish lessons. (may)
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3. I’m sure they would be home by now. (must)
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4. James was allowed at an adult club last night! (can’t)
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5. It was possible the weather would be sunny last month. (might)
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6. I’m sure that Mrs Smith didn’t leave home. (can’t)
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7. Perhaps she’s gone to stay with her mother. (might)
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8. It’s possible that Mr Smith committed a crime. (may)
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9. I’m certain that he buried something in the garden. (must)
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10. Perhaps he won the lottery. (could)
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11. I’m sure he bought a new car. (must)
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12. Perhaps Mr Smith murdered his wife. (might)
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13. I'm sure Claudia home. (must)
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14. I know that wasn't Janet- She's in America. (can’t)
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2. 15. I'm sure she thought I was stupid. (must)
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16. I bet I looked silly in this coat. (must)
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17. They were always buying new cars. I was certain they had a lot of money. (must)
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18. I was sure Jack was not a janitor. He was too well dressed. (can’t)
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19. You were an architect? I'm sure that was an interesting job. (must)
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20. I was sure you were not serious. I knew you were joking. (must)
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21. I was sure Peter had another woman. He keeped coming home late. (must)
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22. This water was possibly dangerous. (could)
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23. Politics was sometimes really boring. (could)
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3. 2. Rewrite the sentences using a modal verb.
1. It isn’t necessary for you to take a jacket.
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2. I advise you to see a dentist.
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3. You aren’t allowed to talk during the exam.
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4. It’s forbidden to park here.
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5. I advise you to study harder.
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6. He is obliged to go to the police station twice a week.
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7. Tom knows how to speak Spanish.
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8. He had permission to go to the party.
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9. It isn’t possible that that is our plane.
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10. It isn’t necessary to take a thick coat.
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11. I wish I had paid for half of the meal, but I didn’t.
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12. It was wrong of Mary to tell Steve about us.
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13. Perhaps Anita didn’t get the text message.
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14. It’s possible that they went to the cinema.
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15. It wasn’t a good idea to ask the other couple to come with us.
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4. 16. I am certain you haven’t seen John because he is on a trip.
You ____________________________________________________________________________
17. It is possible that Jake is in his room.
Jake…__________________________________________________________________________
18. Perhaps we will not see them at the weekend.
We…___________________________________________________________________________
19. I don’t know if I will go to the concert.
I…_____________________________________________________________________________
20. They are certain that bringing up children is not easy.
Bringing up children…______________________________________________________________
21. It is unnecessary for you to come.
You…___________________________________________________________________________
22. I advise him to give up smoking.
He…____________________________________________________________________________
23. Eating chewing-gum in the class in prohibited.
Students…_______________________________________________________________________
24. There was an obligation to turn off the mobile phone.
We…____________________________________________________________________________
25. I didn’t have the ability to cook when I was younger.
I.._______________________________________________________________________________
