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mustn’t, may may not, must don’t have to, may shouldn’t, must
will be waiting have waited are waiting have been waiting
hasn’t he haven’t he mustn’t he didn’t he
are waiting have been waiting have waited will wait
must not don’t don’t have to had better not to
have been have come have arrived waited
have waited was waiting have been waiting waited
Kept…waited have kept…waited kept…have waited have kept…have waited
have been have come have arrived waited
have been have come have arrived waited
could have come must have come must come could come
have been have come have arrived waited
waited had been waiting was waiting have been waiting
must have waited might have waited would have waited could have waited
mustn’t you needn’t you didn’t you haven’t you
have been have come have arrived waited
are waiting have been waiting have waited will wait
mustn’t ,may may not, must don’t have to, may shouldn’t, must
should wait must have waited should have waited must wait
have been have come have arrived waited
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