怎么判断need后加to do 或是do?两者的否定如何变形?
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怎么判断need后加to do 或是do?两者的否定如何变形?
怎么判断need后加to do 或是do?
两者的否定如何变形?
怎么判断need后加to do 或是do?两者的否定如何变形?
need作为实意动词时有任意事态,人称也要变化.后面接不定式
need to do sth.可以直接跟宾语.比如 I need books.
否定形式用主动词don't need
而作为情态动词need do sth.后不能直接加名次.
否定是need't.
皆可。
need do 时是情态动词 否定:neednt do
need to do 是一般动词 否定:dont need to do
need sb to do/doing
need sth do
应该懂了吧
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