Perfective Modals Practice Test — Basic

All 45 questions with answers

Pick an answer for each question to see if you are right, with the explanation. Submit when you are done; you can submit before answering them all.

1. Q1The grass is soaking wet this morning. It ___ last night.

   Acould have rained Bneedn't have rained Cmust have rained Dshould have rained

   Answer: C. must have rained

   Use 'must have' when you see a result (wet grass) and feel sure about what happened in the past.

2. Q2She is holding a gold trophy. She ___ the race.

   Amust have won Bshould have won Cmight have won Dneedn't have won

   Answer: A. must have won

   Use 'must have' when you are sure about a past event because of clear evidence like a trophy.

3. Q3He looks exhausted today. He ___ all night.

   Amight have worked Bshould have worked Cmust have worked Dcould have worked

   Answer: C. must have worked

   'Must have' is used for strong guesses. If he is exhausted now, he likely worked hard all night.

4. Q4The fridge is completely empty. They ___ all the food.

   Amight have eaten Bmust have eaten Cshould have eaten Dcould have eaten

   Answer: B. must have eaten

   An empty fridge is proof that the food is gone. 'Must have eaten' explains this situation.

5. Q5She is smiling broadly. She ___ some good news.

   Acould have heard Bmust have heard Cshould have heard Dmight have heard

   Answer: B. must have heard

   'Must have' describes a past action that we are sure about because of a current result, like her happy smile.

6. Q6He is late for the meeting. He ___ the bus.

   Amight have missed Bcould have missed Cshould have missed Dmust have missed

   Answer: D. must have missed

   We use 'must have' when we draw a logical conclusion. Being late is often the result of missing a bus.

7. Q7There is mud on your shoes. You ___ in the garden.

   Amust have walked Bmight have walked Cshould have walked Dcould have walked

   Answer: A. must have walked

   Use 'must have' when you see proof (mud) and feel sure about what happened in the past.

8. Q8She is blushing. She ___ very embarrassed.

   Amight have been Bmust have been Ccould have been Dshould have been

   Answer: B. must have been

   'Must have been' is used to guess a past feeling. Blushing is a strong sign of being embarrassed.

9. Q9The glass is broken on the floor. Someone ___ it.

   Amust have dropped Bshould have dropped Cmight have dropped Dcould have dropped

   Answer: A. must have dropped

   Use 'must have' for a past action that is certain because of the evidence (broken glass).

10. Q10The lights are all off. They ___ to bed.

    Ashould have gone Bmust have gone Ccould have gone Dmight have gone

    Answer: B. must have gone

    If the lights are off, the most likely reason is that they went to bed. 'Must have' expresses this certainty.

11. Q11He bought a new car. He ___ the lottery.

    Amust have won Bmight have won Ccould have won Dshould have won

    Answer: A. must have won

    'Must have' is for strong logical guesses. Buying a new car is a sign he likely won some money.

12. Q12She isn't answering her phone. She ___ it off.

    Amust have turned Bcould have turned Cmight have turned Dshould have turned

    Answer: A. must have turned

    Use 'must have' when you feel sure something happened. If the phone doesn't ring, she probably turned it off.

13. Q13Your umbrella is wet. It ___ raining.

    Amight have been Bcould have been Cshould have been Dmust have been

    Answer: D. must have been

    Use 'must have been' when you see evidence (a wet umbrella) of something that was happening in the past.

14. Q14The chair is empty, but he was just here. He ___ somewhere else.

    Amust have gone Bshould have gone Cmight have gone Dcould have gone

    Answer: A. must have gone

    If someone has just left their spot, 'must have gone' is the logical deduction — we see the evidence (empty chair) and conclude where they went. 'Must have' expresses certainty based on evidence, making it stronger than 'might have' or 'could have'.

15. Q15Identify the correct sentence:

    AHe must went home. BHe must have went home. CHe must have gone home. DHe must gone home.

    Answer: C. He must have gone home.

    To talk about the past, use 'must have' followed by the third form of the verb. For 'go,' the forms are go-went-gone, so 'gone' is correct.

16. Q16He was with me all day. He ___ the money.

    Acan't have stolen Bshould have stolen Cmight have stolen Dcould have stolen

    Answer: A. can't have stolen

    Use 'can't have' when you are sure something was impossible. If he was with you, he could not have stolen the money.

17. Q17She was asleep. She ___ you.

    Acould have called Bshould have called Cmight have called Dcan't have called

    Answer: D. can't have called

    'Can't have' shows that a past action was impossible. If she was sleeping, she was unable to make a phone call.

18. Q18The door was locked. He ___ inside.

    Ashould have entered Bcan't have entered Cmight have entered Dcould have entered

    Answer: B. can't have entered

    Use 'can't have' to say something was impossible. A locked door means entering was not possible.

19. Q19He is very healthy. He ___ that rotten food.

    Ashould have eaten Bmight have eaten Ccan't have eaten Dcould have eaten

    Answer: C. can't have eaten

    'Can't have' is used for past events that we believe are impossible. If he is healthy, he did not eat the bad food.

20. Q20She has no money. She ___ that expensive bag.

    Ashould have bought Bcould have bought Cmight have bought Dcan't have bought

    Answer: D. can't have bought

    Use 'can't have' when a past action was impossible. Without money, she could not buy an expensive item.

21. Q21It is too far to walk. They ___ there.

    Ashould have walked Bcould have walked Cmight have walked Dcan't have walked

    Answer: D. can't have walked

    'Can't have' shows that something was likely impossible. If it is too far to walk, they did not go there on foot.

22. Q22He is always honest. He ___ to you.

    Ashould have lied Bcan't have lied Cmight have lied Dcould have lied

    Answer: B. can't have lied

    Use 'can't have' when you are certain a past event did not happen. Because he is honest, lying is considered impossible for him.

23. Q23I didn't tell her. She ___ about the surprise.

    Acan't have known Bshould have known Ccould have known Dmight have known

    Answer: A. can't have known

    'Can't have' expresses that something was impossible. If nobody told her, she had no way of knowing the secret.

24. Q24The shop was closed. You ___ bread there.

    Acould have bought Bshould have bought Cmight have bought Dcan't have bought

    Answer: D. can't have bought

    Use 'can't have' for things that were impossible. You cannot buy things if the shop is closed.

25. Q25Identify the correct sentence:

    AShe can't have known the truth. BShe can't known the truth. CShe can't have knew the truth. DShe can't knew the truth.

    Answer: A. She can't have known the truth.

    After 'can't have,' use the third form of the verb. For 'know,' the forms are know-knew-known. 'Known' is the correct choice.

26. Q26He is in Paris right now. He ___ you here.

    Ashould have seen Bmight have seen Ccould have seen Dcan't have seen

    Answer: D. can't have seen

    Use 'can't have' when an action was impossible. If he is in Paris, he could not have seen you here at the same time.

27. Q27She never studied. She ___ the exam.

    Ashould have passed Bmight have passed Ccould have passed Dcan't have passed

    Answer: D. can't have passed

    'Can't have' is for past events that were impossible. It is usually impossible to pass an exam without studying.

28. Q28It is a huge box. He ___ it.

    Amight have carried Bcould have carried Ccan't have carried Dshould have carried

    Answer: C. can't have carried

    Use 'can't have' for impossible actions. One person cannot carry a box that is far too huge.

29. Q29The book isn't here. You ___ it.

    Amight have taken Bcould have took Cshould have took Dcan't have took

    Answer: A. might have taken

    Use 'might have' when you are not sure about the past, but it is possible. We use the form 'taken' after 'have.'

30. Q30Identify the correct sentence:

    AHe can't seen the movie. BHe can't have seen the movie. CHe can't saw the movie. DHe can't have saw the movie.

    Answer: B. He can't have seen the movie.

    Always use 'have' and the third form (seen) after modal verbs like 'can't.' 'Saw' is the past simple and does not work in this pattern.

31. Q31I don't know where he is. He ___ out.

    Acan't have went Bshould have went Ccould have went Dmight have gone

    Answer: D. might have gone

    Use 'might have' for a past possibility. 'Gone' is the correct form to use after 'have.' We do not say 'might have went.'

32. Q32I'm not sure. He ___ about the meeting.

    Amight have forgotten Bcan't have forgot Cshould have forgot Dcould have forgot

    Answer: A. might have forgotten

    'Might have' is used for possibilities. We use 'forgotten' after 'have,' not the past simple 'forgot.'

33. Q33Maybe it's in the car. I ___ it there.

    Acould have leaved Bmight have left Cshould have leaved Dcan't have leaved

    Answer: B. might have left

    'Might have' shows a past possibility. The verb 'leave' becomes 'left' in this pattern; 'leaved' is not a word.

34. Q34I might be late. I ___ the wrong bus.

    Amight have taken Bcan't have took Cmust have took Dshould have took

    Answer: A. might have taken

    Use 'might have' for things that possibly happened. 'Taken' is the correct form after 'have'; 'took' is incorrect.

35. Q35Maybe his plans changed. He ___ his mind.

    Ashould have change Bmust have change Ccan't have change Dmight have changed

    Answer: D. might have changed

    'Might have' is for a past possibility. We use 'changed' with an '-ed' to show the action happened in the past.

36. Q36Perhaps she was busy. She ___ too busy to help.

    Ashould have be Bmust have be Ccan't have be Dmight have been

    Answer: D. might have been

    Use 'might have been' to guess about a past situation. 'Been' is the form of 'be' we use after 'have.'

37. Q37I'm not certain. He ___ the letter.

    Acan't have finish Bshould have finish Cmight have finished Dmust have finish

    Answer: C. might have finished

    'Might have' shows that something possibly happened. We use the third form 'finished' after 'have.'

38. Q38Maybe it fell. I ___ it.

    Amight have lost Bcan't have lose Cmust have lose Dshould have lose

    Answer: A. might have lost

    Use 'might have' for past possibilities. The word 'lost' is the form of 'lose' we use in this pattern.

39. Q39I'm not sure. She ___ the email.

    Amust have send Bshould have send Cmight have sent Dcan't have send

    Answer: C. might have sent

    'Might have' is for guesses about the past. We use 'sent' after 'have.' 'Send' is the present form and is incorrect here.

40. Q40Identify the correct sentence:

    AShe might taken my pen. BShe might have taken my pen. CShe might have took my pen. DShe might took my pen.

    Answer: B. She might have taken my pen.

    After 'might have,' use the third form of the verb. For 'take,' the sequence is take-took-taken, so 'taken' is the correct choice.

41. Q41Maybe he called. I ___ the call.

    Amust have miss Bcan't have miss Cshould have miss Dmight have missed

    Answer: D. might have missed

    'Might have' is used for things that were possible in the past. We use the '-ed' form 'missed' after 'have.'

42. Q42I'm not sure. She ___ at the park.

    Amust have be Bshould have be Ccan't have be Dmight have been

    Answer: D. might have been

    Use 'might have been' to guess where someone was in the past. 'Been' is the correct form to follow 'have.'

43. Q43Perhaps she misunderstood. She ___ what I said.

    Ashould have misunderstand Bmust have misunderstand Cmight have misunderstood Dcan't have misunderstand

    Answer: C. might have misunderstood

    'Might have' is for past possibilities. We use the form 'misunderstood' to show the action is finished.

44. Q44Maybe he broke it. He ___ the vase.

    Amight have broken Bmust have broke Cshould have broke Dcan't have broke

    Answer: A. might have broken

    Use 'might have' when you are not sure if something happened. After 'have,' we use 'broken' (the third form) instead of 'broke' (the past simple).

45. Q45Identify the correct sentence:

    AHe could have written it down. BHe could wrote it down. CHe could written it down. DHe could have wrote it down.

    Answer: A. He could have written it down.

    For past possibilities, use 'could have' and the third form of the verb. The sequence is write-wrote-written, so 'written' is correct.