need可以像普通动词那样变化。此时它有
通常的各种规则的变化形式,但没有进行式。
need可以和带to的不定式连用,或者和作宾语的名词/代词连用:
I need to know the exact size.
我需要知道确切的尺寸。
How much money do you need?I need £
5.你需要多少钱?我需要五英镑。
need可以和不定式的被动式或动名词连用
Your hair needs to be cut/needs cutting.
你需要理发了。
The windows need to be washed/need washing.
这些窗户需要擦洗了。
这里可以用want+动名词代替:
Your hair wants cutting.
你需要理发了。
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