1. remember to do sth. 记住要做某事（未做）
remember doing sth. 记得做过某事（已做）
Remember to close the door,please.
记着关门.
I remember closing the door.
我记得关了门了.
2. forget to do sth. 忘记去做某事（未做）
forget doing sth. 忘记做过某事（已做）
The light in the office is stil on. He forgot to turn it off.
He forgot turning the light off.
3. regret to do sth. 遗憾要做某事（未做）
regret doing sth. 后悔/抱歉做过某事（已做）
I regret to tell you that you can't pass the examination.
I regret disturbing yo so long.
He tries to get the apple above the shelf. But fails to reach i
t. After a while ,Brown comes in and try showing his ability.
他努力去够架子上的苹果，但是没能够到。过了一会儿，布朗近来尝试表现他的能力。
I meant to go, but my father would not allow me to.
Doing that means wasting time.
6. can’t help to do sth. 不能帮助做某事
can’t help doing sth. 情不自禁做某事
I can't help to do such stupid thing.
The movie is so funny. I can't help laughing!
7. go on to do sth. 继续做另一件事
He went on doing his homework in his room after supper.
After finishing his homework,he went on to read the text.
8. stop to do sth. 停下来去做另一件事
The two girls stopped talking when they saw me.
The two girls stopped to talk to me when they saw me.
