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Must; mustn’t Can; mustn’t Must; needn’t May; needn’t
A. who do you think who thought I had who I thought do I think had
will do have to finish must finish would do
had seen; would be helping saw; will help have seen; would help have seen; will be helping
So do I So have I So I do So I have
do the chores do the dishes do the washing fold the clothes
had seen; would be helping saw; will help have seen; would help have seen; will be helping
Sorry, I can't No, you can't Sure, I'd love to Of course not
What do you do? What can I do for you. Can I help you? May I help you?
had seen; would be helping saw; will help have seen; would help have seen; will be helping
So do I So have I So I do So I have
Sorry, I can’t No, you can’t Sure, I’d love to Of course not
of course Sorry,I can't Y