来自齐伟民的问题
是needdo还是needtodo?为什么didn'tneedtodo是不必要做也没做?
是needdo还是needtodo?为什么didn'tneedtodo是不必要做也没做?
1回答
2020-08-11 04:12
是needdo还是needtodo?为什么didn'tneedtodo是不必要做也没做?
是needdo还是needtodo?为什么didn'tneedtodo是不必要做也没做?
首先要注意一点:
need既可以做情态动词,也可以作实义动词用
作情态动词时,只能用于否定句和疑问句
所以便不能说:
Youneed(情态动词)learnEnglishwell.(肯定句)
要说:
Youneed(实义动词)tolearnEnglishwell.
至于否定式,可互换:
Youneedn'tgothere(情态动词)
=Youdon'tneedtogothere.(实义动词)