英语语法求：单词或短语后面＋to do 和do 的．内容为初三的例如：let +dohelp+to do

跟不定式（to do）作宾语的动词：
want,wish,hope,manage,pretend,decide,learn,agree,expect,demand,long,ask,
care,choose,dare,fail,offer,plan,prepare,promise,refuse,desire,happen,
appear,intend,would like to,be said to,
B.跟动名词(doing)作宾语的动词：
suggest,admit,finish,avoid,mind,enjoy,delay,practice,excuse sb.for,
advice,consider,escape,miss,risk,dislike,imagine,permit,require(表被动),
appreciate(感激),understand,insist on,look forward to,get down to,
devote oneself to,prefer…to… object to (反对),put off,apologize to sb.for,
give up,
forgive sb.for,be worth,be fond of,be good at,be slow in,be active in,
be afraid of,be tired of,be busy,succeed in,
prevent/stop/keep sb.from,spend time (in),have difficult/trouble in,
It’s no use/good,
be pround of,instead of.
C.跟动名词(doing)和动词不定式（to do）均可的词,含义无区别：
start,begin,continue,
prefer,like,love,hate,后跟to do 表具体和特定的动作,后跟 doing 表泛指的动作
D.跟动名词(doing)动词不定式（to do）均可的词,含义区别较大：
1.stop to do 2.mean to do 3.try to do 4.agree to do
stop doing mean doing try doing agree to sb doing
5.be afraid to do 6.remember to do 7.forget to do 8.allow/permit/advise sb.to do
be afraid of doing remember doing forget doing allow/permit/advise doing
9.regret to do 10.want to do 11.need to do 12.go on to do
regret doing want doing (表被动) need(表被动) go on doing
13.can’t help to do 14.forbid sb.to do=forbid sb’s doing
can’t help doing forbid doing
动词不定式(to do)是初中英语课的重点,也是中考要考查的项目.动词不定式属于非谓语动词的一种形式,以下对动词不定式的用法做简单归纳：
一、动词不定式在句子中不能充当谓语,没有人称和数的变化.
二、动词不定式由“to+动词原形”构成(有时可以不带to),否定形式是“not+动词不定式”(not不与助动词连用).
三、动词不定式短语具有名词、形容词和副词等的功能,可在句中用做多种句子成分.
1、主语：常置于句末,用it代替其做形式主语.例：It helps you stay fit to go in for sports.It is dangerous to swim in the deep sea on your own.此句式中不定式逻辑上的主语可由for或of引出,由of引出时,表语的形容词为kind,nice,good,polite,clever,foolish,right,wrong等表示评价的形容词.例：It's right of him to refuse the invitation.(him为逻辑主语)
2、表语：例：Our duty is to protect the enviroment.
3、动词宾语：可按固定搭配或句式去记,例：Would you like to see my photos?/ Kevin planned to visit his uncle.和plan用法一样的词还有：start,want,agree,hope,begin,decide等.例：I found it very difficult to get a job.(it为形式宾语)
4、宾语补足语：在多数复合宾语及物动词后要带to,例：I asked a friend to read it to me.在表示感觉、致使等意义的动词(see,watch,hear,feel,notice,observe,make,let,have,help等)后不带to,例：They heard him sing a pop song in the meeting room.
5、定语：放在所修饰的名词的后面.例：Vinny is the first disabled person to sail around the world.
6、形容词补足语：在表示心理、感情、评价等的形容词后,对其进行补充说明.例：We are very glad to meet you again.
7、状语：表示目的、原因、程度等.例：They brought in photos of their families for me to look at.
8、“疑问词＋不定式”用法：不定式前可带what,who,which,where,when,how等疑问词,不定式短语在句中多用做宾语.例：He didn't tell me where to go.
9、不定式被动语态一般式(to be+过去分词),例：There are twenty more trees to be planted.

make do
let do
have do
使驭动词后加do
want to do
need to do
plan to do
suggest to do
advise to do
hope to do
stop to do
go on to do
teach to do
还有很多，几乎其他动词都是
当然还有加doing的

make do
want to do
need to do
wish to do
suggest to do
advise to do
use to do
teach to do
我也不知道这些是不是初三的，希望对你能有帮助。
加do的动词不多，大多数都加to do.

want to do

to do : want to do
hope to do
plan to do
fail to do
do:let
make
have