don't need 后面跟doing还是to do还是do
问题描述：
don't need 后面跟doing还是to do还是do
答
don't to do 是对的.此时need 是实意动词,后面跟动词不定式.
need 作情态动词时,直接加 not ,不需要助动词 ,应该是 need't do .