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