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