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He has been to work. He’s going to work. He’s gone to work. He’ll go to work.
see the dentist drink more water lie down and rest go to bed
is he, Yes, he is has he, No, he hasn’t has he, Yes, he has is he, No, he isn’t
No, he has Yes, he hasn’t Yes, he has No, he hasn’t
has been to has gone to will go to is going to
dentist the dentist the dentist’s see the dentists
has he gone did he go will he go does he go
No he did never go there No, he has never gone there No, he never was there No, he's never been there
It’s his guess It’s up to you That’s settled That depends
not not to not to go not to go to
No, he has Yes, he hasn’t Yes, he has No, he hasn’t