1. go on doing 与go on to do
go on doing 指表示继续做同一件事，go on to do指做了一件事后，继续做另外一件事。例如：
Go on doing the other exercise after you have finished this one.
作完这个练习后，接着做其他的练习
After she finished watching TV, she went on to do his homework.
看完电视后，她接着去做作业了。
2. stop doing与stop to do
stop doing 指停止目前做的事，stop to do指停止正在做的事而去做另外一件事。例如：
The students stopped talking when the teacher came in.
当老师进来时学生们停止了说话。
Let’s stop to have a rest.
让我们停下来休息一会儿。
3. forget doing 与 forget to do
forget doing 指忘记已经做过某事，forget to do 指忘记了要去做某事。例如：
I forgot turning the TV off.
我忘记已经把电视关掉了。
Don’t forget to lock the door when you leave.
当你离开时不要忘记锁门。
4. remember doing 与remember to do
remember doing 记着曾经做过某事；remember to do 记着要去做过某事。例如：
Don’t you remember writing this composition before?
难道你不记得以前曾写过这篇作文吗？
Remember to do your homework before playing computer games.
记得做完作业再玩游戏.
5. try doing 与try to do
try doing 指试验，试着做某事；try to do 努力，企图做某事。例如：
I tried speaking English, but no one understood me.
我试着说英语，但是每人听懂我的意思。
You should try to be more careful in the exam.
你应该在考试中更加仔细。
6. mean doing 与 mean to do
mean doing 指意味着… ，mean to do 指打算、想做某事。例如：
To be thinner means eating less food.
要变瘦就意味着少吃食物。
I mean to go, but my father would not allow me to.
想去，但是我父亲不肯让我去。
7. need doing 与need to do
need doing 含有被动意思，指需要被做某事；need to do 需要去做某事。例如：
The flowers need watering.
这些花需要被浇水。
There is something wrong with my car, I need to repair it.
我的车出问题了，我需要去修理它。
8. regret doing 与regret to do
regret doing 指对做过的发生过的事感到遗憾；regret to do 指对将要去做的事遗憾。例如：
I regret telling her what happened just now.
我后悔告诉她刚才发生什么了。
I regret to have to do this, but I have no way .
我很遗憾要这样做，但是我没办法。
9.感官动词 + doing与感官动词 + do
感官动词 see, watch, notice, look at, hear, listen to, smell, taste, feel +doing 表示动作的进行性; 感官动词+ do表示动作的完整性。例如：
I saw him play in the park yesterday.
昨天我看见他在公园里玩了。（强调"我看见了"这个事实）
I saw him playing in the park yesterday.
昨天我看见他正在公园里玩耍。 （强调"我见他正玩"这个动作）
10.begin（start） doing与 begin（start）to do
begin（start） doing与 begin（start）to do都有开始做某事的意思，但它们在用法上有一些区别：
1）谈及一项长期活动或开始一种习惯时，使用doing.例如：
How old were you when you first started playing the piano?
你几岁时开始弹钢琴？
2）事物作主语时，后面常用不定式to do.例如：
The snow began to melt.
雪开始融化了
3） begin, start用进行时时，后面动词用不定式to do. 例如：
I was beginning to get fatter。
我开始胖了起来。
4）在attempt, intend, begin, start 后接know, understand, realize这类动词时，常用不定式to do. 例如：
I begin to understand the truth。
我开始明白真相。
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