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 MUSTN'T - prohibition 3 CAN - Permission (informal) 4 CAN - possibility 5 CAN - ability 6 MAY - permission (formal) 7 MUST - obligation (personal) 8 DON'T HAVE TO - no obligation 9 MUST - deduction 10 MAY - possibility 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. Walter can check his emails when he is cooking You can't be on time, the bus left ten minutes ago Passengers must check that they have their luggage. You mustn't leave the school jumping over the fence. Passengers have to hold their passports when passing the police control. Can I make a phone call? Eddie's twin brother must be the one on the left because they look alike. "May I come in?" I asked the headmaster.