Matching Pairs Modal Verbs + Have + Past ParticiplesOnline version Match the modal verbs with their corresponding past participles to form correct sentences. by Marcella Endrigo 1 can't have 2 shouldn't have 3 should have 4 might or may have 5 could have 6 must have 7 would have used to say that sth was a good idea, but we didn't do it used to say that sth wasn't a good a idea, but we did it used to express that sth happened (or not) in the past as a result of sth else used to say that we had the opportunity to do sth, but we didn't used to express what was possible in the past used to express conclusions about the past used to conclude that sth was impossible in the past
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