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