The English modal verbs are often challenging for learners In this Hint, we'll take a look at could have. |
We know from earlier Hints that could has many uses. Several Could also has another past form--could have. This form is could have been / could have gone / could have finished / When could is used in this way, it refers to possibility in the Examples:
(I don't know why Bill left early. Maybe he had __________________________________________ I'm not sure where I met her. It could have been at a party (I don't remember where I met her. Maybe I met her __________________________________________ (I know he was at home, but he didn't answer the phone. |
The negative form of could have is could not have (which is Examples:
(It's impossible for you to have seen Jerry yesterday because __________________________________________
(It's impossible for Suzie's daughter to have drawn this __________________________________________
(It's impossible for Bill to have written this letter because
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