1 MODALS Can, must, should.

2 C A N We use can + verb to talk about ability, possibility and permission. She can speak French well. She can be his wife. She can go to the disco.

3 C A N ‘ T (cannot) We use can’t + verb in the negative. She can’t speak French well. She can’t go to the disco.

4 M U S T We use must + verb to talk about obligation. You must do your homework. You must speak English here.

5 M U S T N ‘ T We use mustn’t + verb to talk about prohibition. You mustn’t eat in the library. You mustn’t park here.

6 COULD We use could + verb to talk about ability in the past. He could swim when he was five years old.

7 SHOULD We use should + verb to give advice. You should help your schoolmates.

8 SHOULD We use shouldn’t + verb in the negative. You shouldn’t eat so much cake.