forget to do/ doing

问题描述:

forget to do/ doing
We forgt _______(tell) them when the party was ,so they were late!这里的空应该填什么?我知道todo和 doing的区别,但是我是分不清!1who can help me?

这个问题我来帮你吧,to do ,不定式表示的后发生,未发生的事情或动作,doing 实际是表示是真正进行或是已发生的动作,就是这一念之差,决定forget to do 是忘记去做某事,而forget doing 是忘记做过某事.综上,题应该选for...