COULD is used for general possibilities in the past., True, False, MIGHT HAVE is used for general repeated situations in the past, True, Flase, COULD HAVE is used to show something definitely happened., True, False, MIGHT HAVE + past participle can express regret., True, False, CAN’T HAVE is used when we are sure something did not happen., True, False, MAY NOT HAVE shows strong certainty that something didn’t happen., True, False.

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