— I wonder if you have a single room for tonight. —Sorry, I'm afraid we have ________at the mom...

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shouldn’t have gone mustn’t have gone couldn’t have gone mightn’t have gone

have；have    will have；will have
   have；will have    will have；have

have; have will have; will have have; will have will have; have

being sung; sang sang; singing sung; sing to be sung; to sing

mustn’t have gone couldn’t have gone shouldn’t have gone mightn’t have gone

shouldn’t have gone mustn’t have gone couldn’t have gone mightn’t have gone

have; have will have; will have have; will have will have; have

if have you mentioned what have you mentioned if you have mentioned what you have mentioned

I told you; do be told; have done told to; have done told; do

pick that up put that up make that up take that up

being sung, sang sang, singing sung, sing to be sung, to sing

have; doubt has; wonder 　 have; wonder has; choice

In case Though Even In spite of

doubt wonder chance point

heard will hear have heard had heard

who’s that what’s that what if can I help you?

shouldn’t have gone mustn’t have gone couldn’t have gone mightn’t have gone

shouldn’t have gone mustn’t have gone couldn’t have gone mightn’t have gone