We use modal verbs like must, can and should with the infinite without to. (True or False?), What modals can we use to express obligation? Give an example., What modal can we use to ask questions about obligation? Give an example., What modal can we use to talk about prohibition? What prohibitions are there at school?, Which form of can do we use to say somebody doesn't have permission?, What do we use allowed to and not allowed to for? Give examples., WHat do we use should and shouldn't for? Give examples., What's the difference between must and have to?, What's the difference between mustn't and don't have to?, How can we ask questions with have to and with allowed to?.

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