we ____ pens.we need some pencilsneedn't don't need can't need aren't need

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we ____ pens.we need some pencilsneedn't don't need can't need aren't need

we ____ pens.we need some pencilsneedn't don't need can't need aren't need
we ____ pens.we need some pencils
needn't don't need can't need aren't need

we ____ pens.we need some pencilsneedn't don't need can't need aren't need
have

don't need

don't need
need 词性有三种, 它可以做名词,实义动词和情态动词
当它做实义动词时后接宾语,宾语可以是名词,动名词, 不定式.它的否定式就是就是在前面加do not/does not/did not. 这里pens 是名词.因此符合此点.
当它做情态动词时后接动词原形.否定时就直接在need后面加not....

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don't need
need 词性有三种, 它可以做名词,实义动词和情态动词
当它做实义动词时后接宾语,宾语可以是名词,动名词, 不定式.它的否定式就是就是在前面加do not/does not/did not. 这里pens 是名词.因此符合此点.
当它做情态动词时后接动词原形.否定时就直接在need后面加not.

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填don't need