A woman phoned for you, but she didn’t give her name. Read the situations and use the words in brackets to write sentences with must have, may have and might have. I dont know where they went on holiday but they bought Euros before they left so they gone to France or Germany. You been ill - Don said you were at the ice hockey match last night. “Who is that girl with Bob?” – “Ask Sheila. Dont lie to me that you were ill yesterday. “Where’s Jack?” – “He _ be in his office”.ĭon’t make too much noise. Have you seen him?” – “He _ be in the canteen”.Ĥ. Police think the suspect may have left the country using a fake passport.ĭEDUCTIONS ABOUT PRESENT AND PAST ACTIONSĬomplete the sentences by putting in must, may or might.Į.g. I think I might have left the air conditioning on. We can use might have or may have + past participle when we think it’s possible that something happened. The door was locked and nothing was broken. Who told the newspapers about the prime minister’s plans? It must have been someone close to him. We use must have + past participle when we feel sure about what happened. The modal verb we choose shows how certain we are about the possibility. We can use modal verbs for deduction – guessing if something is true using the available information.