1. remember to do sth. 記住要做某事（未做）
remember doing sth. 記得做過某事（已做）
Remember to close the door,please.
記著關門.
I remember closing the door.
我記得關了門了.
2. forget to do sth. 忘記去做某事（未做）
forget doing sth. 忘記做過某事（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. 遺憾要做某事（未做）
regret doing sth. 后悔/抱歉做過某事（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.
他努力去夠架子上的蘋果，但是沒能夠到。過了一會兒，布朗近來嘗試表現他的能力。
I meant to go, but my father would not allow me to.
Doing that means wasting time.
6. can’t help to do sth. 不能幫助做某事
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. 繼續做另一件事
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. 停下來去做另一件事
The two girls stopped talking when they saw me.
The two girls stopped to talk to me when they saw me.
