May, might, could and must + haveVersión en línea Exercises to practice may, might, could and must + have. por Diana Sofia Moreno Mancilla 1 He didn’t answer the phone. He _________ (be) busy. a He didn’t answer the phone. He must have been busy. b He didn’t answer the phone. He must to have been busy. c He didn’t answer the phone. He must was been busy. d He didn’t answer the phone. He must had been busy. 2 They _________ (forget) to send the email. Check with them. a They could have forgotten to send the email. Check with them. b They had have forgotten to send the email. Check with them. c They will have forgotten to send the email. Check with them. d They might have forgotten to send the email. Check with them. 3 The ground is wet. It _________ (rain) earlier. a The ground is wet. It must has rained earlier. b The ground is wet. It might have to rained earlier. c The ground is wet. It must have rained earlier. d The ground is wet. It must was rained earlier. 4 You _________ (win) the race if you hadn’t tripped. a You could have won the race if you hadn’t tripped. b You have been have won the race if you hadn’t tripped. c You must have won the race if you hadn’t tripped. d You might have won the race if you hadn’t tripped. 5 She looks so happy. She _________ (get) some good news. a She looks so happy. She may have gotten some good news. b She looks so happy. She could have gotten some good news. c She looks so happy. She must have get some good news. d She looks so happy. She might have gotten some good news. 6 He _________ (stay) up late working on his project. a He looks so tired today. He may have stayed up late working on his project. b He looks so tired today. He might have stayed up late working on his project. c He looks so tired today. He couldhave stayed up late working on his project. d He looks so tired today. He must have stay up late working on his project. 7 The lights are off in their house. They _________ (go) out for dinner.He looks so tired today. a The lights are off in their house. They may have gone out for dinner. b The lights are off in their house. They were have gone out for dinner. c The lights are off in their house. They had have gone out for dinner. d The lights are off in their house. They might to have gone out for dinner. 8 I can’t find my wallet. I _________ (leave) it at the restaurant. a I can’t find my wallet. I might have left it at the restaurant. b I can’t find my wallet. I could have left it at the restaurant. c I can’t find my wallet. I may have left it at the restaurant. d I can’t find my wallet. I would have left it at the restaurant. 9 The cake tastes amazing! You _________ (spend) a lot of time baking it. a The cake tastes amazing! You might have spent a lot of time baking it. b The cake tastes amazing! You must have spent a lot of time baking it. c The cake tastes amazing! You may have spent a lot of time baking it. d The cake tastes amazing! You could have spent a lot of time baking it. 10 She didn’t answer my message. She _________ (not see) it yet. a She didn’t answer my message. She could have not seen it yet. b She didn’t answer my message. She might have not seen it yet. c She didn’t answer my message. She must have not seen it yet. d She didn’t answer my message. She can have not seen it yet.
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