像forget to dosth 和forget doing sth 就不一样

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像forget to dosth 和forget doing sth 就不一样
像forget to dosth 和forget doing sth 就不一样

像forget to dosth 和forget doing sth 就不一样
forget to do 忘记要去做某事.(未做)
forget doing 忘记做过某事.(已做)
The light in the office is stil on.He forgot to turn it off.
办公室的灯还在亮着,它忘记关了.(没有做关灯的动作)
He forgot turning the light off.
他忘记他已经关了灯了.( 已做过关灯的动作)
Don't forget to come tomorrow.
别忘了明天来.(to come动作未做)
Sorry,I forgot to bring the book.(对不起,我忘了带书了.)
I forgot borrowing a book from you.(我忘记曾经向你借过书这件事)

前者是忘记要去做某事(还没做)
后者是忘记做过某事(已经做了)

动词不定式表示“忘记去做某事”某事还未做。
动名词表示“忘记做过某事”某事已做过忘记了。