Matching Pairs RULES!!Online version modal verbs for rules by Ilaria Tabet 1 There are signs everywhere saying that teenagers can't ride skateboards or bikes. 2 You mustn't be late for the test! 3 They know they mustn't leave rubbish in the park. 4 We don't have to wear a uniform at school, thank God! 5 You don't have to pay to use the park...it's free! 6 They know they must keep their park clean. 7 You can get up later today... it's Sunday! 8 Everyone can enjoy the park. prohibition it is allowed it is not allowed obligation it's not necessary it's not necessary it is allowed/possible prohibition