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to find the book finding the book found the book find the book
don’t have;have doesn’t have;has have;doesn’t have have;has
mustn’t couldn’t can’t don’t have to
would never have called hadn’t called won’t call wouldn’t be calling
have just borrowed have just lent kept have just kept
would had had would have had thought
return returned will return have returned
Yes, I will No, I won’t Yes, I do No, I don’t
would had had would have had thought
do; don’t have to do; mustn’t must; don’t have to must; mustn’t
forget leave have forgotten have left
No, you can’t. I’m sorry. I don’t know. Sorry, I don’t have onE. Yes, I do.
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