Modal VerbsOnline version Students should match the modal verb with its proper rule of use. by Alsou Khazieva 1 Can 2 Can't 3 Must 4 Mustn't 5 have to/ has to 6 Don't/ doesn't have to Yes, you ... use my laptop. You ... buy tickets online. No, you ... go to the park until you finish your homework. You ... camp here. You ... wear a helmet when you ride a motorbike. You ... keep off the grass. You ... talk in the library You ... feed the alligators. Our teacher says we ... study hard for our maths test. You ... be careful. You ... come if you don't want to. You ... to travel by ferry.