Matching Pairs Modal verbs. Online version Match the correct modal verb with the example. by Isabel Gallego Chaves 1 MAY - permission (formal) 2 HAVE TO - obligation (external) 3 MAY - possibility 4 CAN - ability 5 DON'T HAVE TO - no obligation 6 MUST - deduction 7 MUST - obligation (personal) 8 CAN - possibility 9 CAN - Permission (informal) 10 MUSTN'T - prohibition If your car is correctly parked, you don't have to worry. Walter can check his emails when he is cooking Passengers have to hold their passports when passing the police control. Eddie's twin brother must be the one on the left because they look alike. "May I come in?" I asked the headmaster. You mustn't leave the school jumping over the fence. Passengers must check that they have their luggage. I am busy all day but I may lend you a hand after work. You can't be on time, the bus left ten minutes ago Can I make a phone call?