Matching Pairs B1+ - U5 - GrammarOnline version Match the sentences with the functions of the modals. by Rocío Oviedo 1 I SHOULD HAVE asked about the tickets. I think it's too late now. 2 He MUST HAVE done really well in the interview for them to offer him the job so quickly. 3 I couldn't find my keys and I thought I MIGHT HAVE lost them in the park. 4 You NEEDN'T HAVE worried about giving the presentation. You were really good! 5 They COULD HAVE joined us in Vietnam, but they decided to stay longer in Laos. past possibility lack of necessity or obligation in the past certainty about the past criticism of past actions past possibility