Modal Verbs: Speculating about past events
100 % certain
|We often speculate, or make “best guesses”, about past situations based on facts that we have. The modal that we choose depends on how certain we are about our speculation.||Affirmative
|When you are almost 100 percent certain that something was possible, use must have or had to have.||
statues are very big.
· They must have been hard to move.
|When you are less certain, use may have, might have, or could have.||
islanders were able to carve the stone.
· The stone may have been quite soft.
|When you are almost 100 percent certain that something was impossible, use can’t have or couldn’t have.||· The islanders couldn’t have moved the stone! It was too heavy.|
|When you are slightly less certain, use must not.||· They must not have moved it without help.|
|Use may not have or might not have when you are less certain.||· The islanders might not have moved the statues over land. They could have used boats.|
There is a man badly
injured in the hospital. Complete what his friends are saying about him,
using each of these verb forms.
“He __________ be in hospital for weeks.”
“He __________ recover completely.”
“But it ___________ be worse. He ____________ been killed.”
“This is a very good hospital. He ___________ get better medical treatment anywhere else.”
“The other car was on the wrong side of the road. The driver ___________ been drunk.
Created by Adriane de S. S. Romano
3. Exercise (present & past)
4. Exercise (present & past)
5. Exercise (present & past)
6. Exercise (present & past)
7. Modal to problem solve
8. Song - The day before you came
9. Implied Meaning of Past Modals
10. Use of "should have / should not have"
11. Use of "must have / must not have"
12. Use of "may have / may not have"
13. Past Modals, Review
14. Past Modals - Class activity - Teacher's notes