Must Have, Should Have, Could Have worksheet

1. 1.
   The road is wet. It in the night.a) must have rainedb) must rain
2. 2.
   I failed the test. I more.a) must have studiedb) should have studied
3. 3.
   Where's Ana? She the train. She's usually on time.a) might have missedb) should have missed
4. 4.
   You me! I would have helped.a) could have askedb) must have asked
5. 5.
   They already. The match only started ten minutes ago.a) must have finishedb) can't have finished

1. 1.
   He must have went home.
2. 2.
   You should of called me.
3. 3.
   She mustn't have seen us.

Write three sentences of your own that use this rule. You can use these phrases.

• must have
• might have
• can't have
• should have
• shouldn't have
• could have

1. 1.a) must have rained A guess about the past: must have + participle.
2. 2.b) should have studied A regret: should have.
3. 3.a) might have missed A possible explanation: might have.
4. 4.a) could have asked A missed chance: could have.
5. 5.b) can't have finished Almost certainly didn't happen: can't have.

1. 1.He must have gone home. After have, use the past participle: gone, not went.
2. 2.You should have called me. Should've sounds like should of, but it's always should have.
3. 3.She can't have seen us. For a strong negative guess, use can't have.

Answers will vary. Check that each sentence follows the rule on page 1, or paste them into Clarigram to have them checked.