Relier Pairs have to, must & should, plusVersion en ligne Checking vocabulary learnt/verb use MBO outdoor year1. Match the sentences or the missing word by the dots ....... par Tina Oomes-Swift 1 Do not do this. It is prohibited (not allowed). 2 Pessimistic means... 3 It is not allowed. You ..............................park your car here. 4 It is a bad idea to do this. 5 It isn't necessary, but it is a good idea. 6 Frustrated means... 7 A branch might fall out of that tree, You .......................... park your car here. 8 You need to do this. It is compulsory. 9 Optimistic means... shouldn't ...negative state of mind and thinking that things will go badly. You should do it. ...feeling annoyed that you can't do something or that something is not as you think it should be. You shouldn't do this. (You should not do this.) mustn't ...positive state of mind and thinking that things will go well. You must not do it. You must do it.