I can swim., I am able to swim., I be able to swim., I am so tired!, You shouldn't sleep., You should sleep more., They could play basketball., They able to play basketball., They were able to play basketball., We couldn't speak on the phone., We weren't able to speak on the phone., We can't speak on the phone., The test was difficult., Have the students be able to finish it?, Have the students been able to finish it? , There was a storm yesterday., Susan was able to stay calm., Susan able to stay calm., They ... help us with our homework., ought to, ought, Will you be able to carry those boxes?, Yes,I can., Yes,I wiil., I am not sure I can stay., I may stay., I will stay., He ....rich if he can stay in this expensive hotel., can't be , must be, He is able to run fast., He can run fast., He could run fast., We will fly to London., Do we have to have our passports?, Do we must have our passports?, It's a birthday party,, you don't have to wear your uniform., you have to wear your uniform., Smoking is bad for you., You must smoke., You shouldn't smoke., You have a great GPS,, you can't be lost!, you must be lost!, We aren't sure,, we must visit Paris next month., we might visit Paris next month., I need to call my mother., Be able to use your phine?, Could I use your phone?, She doesn't smile in her holiday selfies, , she can't have had a great time!, she mustn't have had a great time., I feel cold,, may you close the window?, could you close the window?, No,you ..... with us if you don't want to., don't have to, mustn't come.

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