Question

Talk about possibility in the past=>

Accepted Answer

We can use may(not), might(not), couldn't, must, can't + have + past participle

to talk about possibility in the past.

In the attack he must have hit his head. (=there is strong evidence that he hit his head).

He could have had a wife and children. (this is a possible situation).

He can't have been married. (=there is strong evidence that he wasn't married).

Front	Talk about possibility in the past=>
Back	We can use may(not), might(not), couldn't, must, can't + have + past participle to talk about possibility in the past. In the attack he must have hit his head. (=there is strong evidence that he hit his head). He could have had a wife and children. (this is a possible situation). He can't have been married. (=there is strong evidence that he wasn't married).

Talk Possibility Hit =There Strong Evidence Past=> May(not