Asked by rfvv

1. Can he have killed his wife?
2. Could hee have killed his wife?
3. He can have killed his wife.
4. He could have killed his wife.
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Do you use #1? Then, what is the difference between #1 and #2?
Don't you use #3 in English speaking countries?

Answers

Answered by Writeacher
2 and 4 are used most commonly.

1 is possible, but not often.
3 is not used.
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