Modal Verbs Test – Level: B2

 

Each sentence below contains a mistake related to the use of modal verbs. Identify and correct the mistakes. Write the full corrected sentence.

 

1. She must have knew the answer.

2. They should of arrived by now.

3. You might have been waiting for hours.

4. He can’t has finished the project so soon.

5. They mustn't be playing so loudly at this hour.

6. She could of gone to the party if she wanted.

7. He should of been studying instead of playing games.

8. They must of forgotten about the meeting.

9. She might have been practicing piano for hours.

10. He can't have been working here for five years already.

11. You must to be joking!

12. They could has seen the accident.

13. She may of been taking a nap.

14. He should been waiting for you.

15. They mustn't of been listening to the instructions.

16. She might has gone to the store.

17. He could have been slept through the alarm.

18. They should of called you earlier.

19. She mustn't have known about the changes.

20. He could has been working on the project all night.

21. They may of missed the bus.

22. She should have went to the doctor.

23. He must of been thinking about something else.

24. They mightn't has understood the question.

25. You ought to of told me about the meeting.

 

Answers:

 

1. She must have known the answer.

2. They should have arrived by now.

3. Correct as is (You might have been waiting for hours).

4. He can’t have finished the project so soon.

5. They mustn't be playing so loudly at this hour.

6. She could have gone to the party if she wanted.

7. He should have been studying instead of playing games.

8. They must have forgotten about the meeting.

9. Correct as is (She might have been practicing piano for hours).

10. Correct as is (He can't have been working here for five years already).

11. You must be joking!

12. They could have seen the accident.

13. She may have been taking a nap.

14. He should have been waiting for you.

15. They mustn't have been listening to the instructions.

16. She might have gone to the store.

17. He could have slept through the alarm.

18. They should have called you earlier.

19. Correct as is (She mustn't have known about the changes).

20. He could have been working on the project all night.

21. They may have missed the bus.

22. She should have gone to the doctor.

23. He must have been thinking about something else.

24. They mightn't have understood the question.

25. You ought to have told me about the meeting.