forget to do、 forget doing的用法和區別:

1. forget to do是指忘記去做某件事了,即該事還沒有做。

例:Please don』t forget to call this afternoon.今天下午不要忘了給我打電話。
I forgot to take some small change with me.我身上忘了帶零錢了。

2. forget doing是指忘記某件已經做過的事情,即該事已經做了,但被忘記了。

例:He forgot telling me his address.他忘了告訴過我地址了。
They forgot having been here before.他們忘了以前曾來過這兒。