forget to dp sth和forget doing sth 以及remember to do sth remember doing

题目

forget to dp sth和forget doing sth 以及remember to do sth remember doing

答案

forget to do 是忘记去做某事,没有做过
forget doing 是忘记做过某事
remember to do 是记得去做某事,是还没做
remember doing 是记得做过某事,已经做过了