有些单词后面是 do sth，有的是doing sth，有的是to do sth，在做时态题的时候怎么做
请看下面的试题：
He knows nothing about it, so he can’t help _________ any of your work.
A. doing
B. to do
C. being doing
D. to be done
【分析】此题答案应选B。比较以下结构：
can’t help to do sth = 不能帮助做某事
can’t help doing sth = 禁不住做某事，情不自禁地做某事
请看例句：
I can’t help to do it. 我不能帮忙做这事。
He couldn’t help to wash the clothes. 我不能帮忙洗衣服。
She couldn’t help smiling. 她禁不住笑了起来。
She couldn’t help envying Helen. 她不由得不妒忌海伦。
We cannot help being impressed by their zeal. 我们不由得不被他们的热情感动。
英语有时还可说can’t help somebody doing something不能使某人不做某事。如：
I couldn’t help him saying that. 我不能让他不这样说。
We couldn’t help them seeing us. 我们无法让他们不看到我们。
She could not help the tears of rage rolling down her face. 她止不住她愤怒的眼泪顺着面颊流下来。
又如下面一题，答案也是 B：
She can’t help _________ the house because she’s busy making a cake.
A. cleaning
B. to clean
C. cleaned
D. being cleaned
再请看以下试题：
While shopping, people sometimes can’t help _________ into buying something they don’t really need.
A. to persuade
B. persuading
C. being persuaded
D. be persuaded
此题应选C，句中的 can’t help 意为“禁不住”（注意根据句意用被动形式）
使用-ing的几种情况
（一）在进行时态中。如： 1.He is watching TV in the room.
2.They were dancing at nine o'clock last night.
（二）在there be结构中。
如：There is a boy swimming in the river.
（三在have fun/problems结构中。
如：We have fun learning English this term.
They had problems getting to the top of the mountain.
（四）.在介词后面。如：Thanks for helping me.
Are you good at playing basketball？
What /How about doing sth? 做某事怎么样? I am interested in playing football.
（五）.在以下结构中的应用:
1. enjoy doing sth 喜欢做某事；
2. finish doing sth； 完成做某事；
3. feel like doing sth 想要做某事；
4. stop doing sth 停止做某事（原来的事）
5. forget doing sth 忘记做过某事；
6. go on doing sth 继续做某事（原来的事）；
7. remember doing sth 记得做过某事；
8. like doing sth 喜欢做某事；
9. find /see/hear/watch sb doing
发现/看到/听到/观看某人做
10. try doing sth 试图做某事；
11. need doing sth 需要做某事；
12. prefer doing sth 宁愿做某事；
13. mind doing sth 介意做某事；
14. miss doing sth 错过做某事；
15. practice doing sth 练习做某事；
16. be busy doing sth 忙于做某事；
17. can't help doing sth 禁不住做某事；
18. waste time/money doing 浪费时间/金钱做…
19. keep sb.doing让…始终/一直做…
20. stop sb.(from)doing 阻止某人做某事
21. prefer doing B to doing B=like A better than A
喜欢做A更喜欢做B
22. “do some +doing”短语
do some shopping do some washing
do some reading do some practicing
do some cleaning do some speaking
23．“go doing”短语去做某事（主要指文娱活动等）
go shopping go fishing
go swimming go hiking
go skating go camping
go skiing（滑雪) go boating
go hunting (打猎)
.注意动词的过去分词的常见搭配:
I feel(am/was) excited/ surprised/ amazed /interested /tired/pleased/worried/lost
Keep…closed/ a boy called/named Tom
常见动词不定式词组、句型用法
固定用法(非谓语动词)：
以下是带to的动词不定式
★希望做某事hope to do sth.
★决定做某事decide to do sth.
★同意做某事agree to do sth.
★需要某人做某事need to do sth.
★使用某物做某事use sth to do sth
★迫不及待做某事can’t wait to do
★准备做某事get/be ready to do
★尽力/努力做某事try to do sth
★计划做某事plan to do sth.
★不得不have to do
★轮流做某事take one’s turns to do sth.
★拒绝做某事refuse to do sth.
★告诉某人做某事tell sb. to do sth.
★请某人做某事ask sb. to do sth.
★希望某人做某事wish sb. to do sth.
★想要某人做某事want /would like sb. to do sth.
★同意某人做某事agree sb. to do sth.
★教某人做某事teach sb. to do sth.
★喜欢/想要某人做某事 like sb. to do sth.
★帮助某人做某事help sb. to do sth/help sb.do
★鼓励某人做encourage sb to do
★It’s one’s turn to do sth. 轮到某人做某事 例句:It your turn to clean the blackboard.
★It’s time(for sb.) to do sth.是某人做某事时候了 例句:It’s time for me to go home.
★It’s +adj. for/of sb. to do sth. 对于某人来说做某事是……（当adj.是表示性格、品德的形容词时用of）
例句: It is easy for me to learn it well.
It is very kind/foolish/nice of you to do so.
★ It takes sb. sometime to do sth.
某人做某事花了某时间
例句:1.It takes me an hour to get to school by bike.
2.It took me an hour to watch TV last night.
3.It will take her two weeks to finish the work.
★too+adj./adv. to do sth. 太…..而不能 例: He was to angry to say a word.
★find/think/feel it +adj. to do sth.发现/认为/感到做某事是…
例: I find/think/feel it hard to learn English well.
★序数词+to do 第…..个做某事 例句:
Who is the first to get there?
★我不知/忘记了怎么办。
I didn't know/forgot what to do.
★ 离开房间时不要忘记/记住关灯
例句:Don’t forget/Remember to turn off the lights when you left the room
★ be+adj+to do sth
例句:I am very sorry to hear that.
I am ready to help others.
I am happy/pleased/glad to meet you.
顺口溜：本领最多不定式，主表定补宾和状；样样成分都能干，只有谓语它不敢；大家千万要小心，有时它把句型改；作主语时用it，自己在后把身藏；七个感官三使役，宾补要把to甩开；疑问词后接上它，宾语从句可充当；逻辑主语不定式，不定式前加for sb.；to前not是否定，各种用法区别开。
以下是不带to的动词不定式(即动词原形)的常见用法
★ let sb. do sth让某人做某事
★ make do sth使得某人做某事
★ hear do sth do sth听见某人做某事
★see do sth do sth看见某人做某事
★ why not 或why don’t you +动词原形？为什么不….?（表示建议）
例:Why not/Why don’t you take a walk?
★ 某人+had better( not)do 某人最好(不)做某事
★ 情态动词can/may /must /should+ 动词原形（包括情态动词的否定形式+动词原形）
★ 助动词do/does/did/will/would在构成疑问句或者构成否定句即don’t /doesn’t /didn’t /will not /would not+ 动词原形
★ be going to + 动词原形（表示“即将”“打算” 做某事）
用do sth的最少，其次是doing sth，用to do的最多。把前面两个记住，剩下的都用to do即可。
这些都是语法规则，英语中就规定这样的。你不用买书，自己一点点积累，一点点归类就可以了。因为书中也不会告诉你这个为什么用to do，这个为什么用doing，书中所做也还就是帮你归类，我觉得如果你只是拿着别人总结的去背，还不如自己总结的印象深刻，等归类完了，你可以根据这些动词的中文含义编个顺口溜什么的，心中有个数，哪些个单词是用to do ，哪些是用doing，哪些个是用do。而且在整理的过程中你会发现很多其他问题，这对你英语学习是有百利而无一害的事。
http://www.docin.com/p-264663921.html 这是别人总结的，你可以参考一下吧。
后面加do sth的是情态动词，如can will should等，这类词后面跟动词原形，时态变化就变情态动词。也有特殊如help sb do sth（帮助某人做某事）
至于to do和doing，就得一一单独记了，很难说有什么规律。
大多有固定搭配的都是to do，比如want to do（想做某事）
而有些不是固定搭配的就是doing，比如like doing（喜欢做某事）
to do和doing这两种情况的出现都是因为一个完整且正确的句子中，有且只能有一个谓语动词，比如上面两个例子里的want和like。相应的 后面出现的动词就要变成分词或介词短语，如上面的want和like后面的部分。
还有一些特殊情况如look forward to doing sth（期待做某事）
见的多了以后你就会有一种感觉了。
规律就是遵循语法吧。看这些词前面是什么。
比如，前面是主语，后面就是do sth (例句：i read books every evening.),
前面是名词，后面就跟doing (例句：The books i reading are about education. )
名词后也可跟to do （例句：i have a lot of books to read.)
doing 和 to do 在含义上也有一定区别，要看整个句子的含义。
都要背的，固定搭配
例如we'd better do
i like doing/to do
郭勇吗替： Let's
绥棱县13516855068： 有些单词后面是 do sth,有的是doing sth,有的是to do sth,在做时态题的时候怎么做 - ？
郭勇吗替： 规律就是遵循语法吧.看这些词前面是什么.比如,前面是主语,后面就是do sth (例句:i read books every evening.),前面是名词,后面就跟doing (例句:The books i reading are about education. ) 名词后也可跟to do (例句:i have a lot of books to read.) doing 和 to do 在含义上也有一定区别,要看整个句子的含义.
绥棱县13516855068： 有哪些英语单词后跟to do sth的 - ？
郭勇吗替： 1.remember to do sth.记住要做某事 remember doing sth.记住曾做过某事 2.forget to do sth.忘记要做某事 forget doing sth.忘记曾做过某事 3.try to do sth.设法要做某事 try doing sth.做某事试试看有何效果 4.mean to do sth.打算做某事 mean doing ...
绥棱县13516855068： 从初一到初二都有哪些英语单词或短语后面加do或to do”.英语好的帮帮忙吧 - ？
郭勇吗替：[答案] let make see hear watch feel sb + do sth help sb (to) do sth enjoy doing sth like to do/doing sth 其它基本上都用to do
绥棱县13516855068： 我知道了英语中哪些词语后加doing sth和哪些词语后面加to do sth.但是谁可以告诉我哪些词后面加do sth - ？
郭勇吗替：[答案] to do want to do would like to do plan to do decide to do wish to do attempt to do hope to do used to do offer to do mean to do need to do seem to do learn to do fail to do(没能…) pretend to do agree to do can(not) afford to do get ready to do be ...
绥棱县13516855068： 七年级的英语哪些单词后面+doing,to do sth ,动词原形? - ？
郭勇吗替： 加Doing 的有;Give up . Advice .allow .avoid .bear .can't help . Consider .delay.enjoy .finish . Miss .suggest .stand .practise .risk . 加To do 的有;agree .ask .choose .decide .demand .desire .expect .offer .prepare .pretend .promise. 加动词原型的;情态动词后全加动词的原型.
绥棱县13516855068： 帮忙总结一下后面只加to do或只加doing或两种都可以加的英语单词,拜托了!!! - ？
郭勇吗替： 动词后加to do 和 doing的记忆口诀 一、只能用动名词作宾语 [口诀] 考虑建议盼原谅,承认推迟没得想. 避免错过继续练,否定完成停欣赏. 禁止想象才冒险,不禁介意弃逃亡.consider考虑 suggest建议/advocate 提倡主张 look forward to 盼...
绥棱县13516855068： 什么词后加to do sth.什么词后加do sth.什么词后加doing sth. - ？
郭勇吗替： 固定词组,固定搭配.需死记. 例如,want to do sth,decide to do sth,等等. consider doing sth,perfer doing sth等等.let's do stn等等. 有时感官动词后接ing或do sth都可以 例如,hear doing sth或do sth 都行
绥棱县13516855068： 每个英语单词都会有to do sth 和doing sth 吗 - ？
郭勇吗替： 首先,除了动词后面会接to do sth 和doing sth之外,其他词性都是没有的哦. 另外,再来说动词,有些后接to do sth 举例,ask sb to do sth无doing 形式,有些接doing 举例deny doing sth 无to do 形式.还有既可to do 也可doing 的,如want,try等等,这类词有很多,不过意思不一样.需注意 也有些单词后面直接加do 的,既无to do sth ,也无doing sth,如助动词do,did,does情态动词:can,may,must,should,could,might,shall等
绥棱县13516855068： 哪些单词后跟sb to do sth - ？
郭勇吗替： 1、persuade sb to do sth 劝说某人做某事 例句:We're trying to persuade manufacturers to sell them here 我们正在努力劝说制造商在这里销售. 2、encourage sb to do sth 鼓励某人去做某事 例句:Banks actively encourage people to borrow ...
