英语不带to的动词不定式归纳
省略to的动词不定式情况举例
省略to的动词不定式情况举例以下是小编为大家列举的省略to 的动词不定式情况，希望能帮助大家更好地认识不定式，提高英语水平。
1) 情态动词 ( 除ought 外，ought to)：2) 使役动词 let, have, make：3) 感官动词 see, watch, look at, notice , observe, hear, listen to, smell, feel, find 等后作宾补，省略to。
注意：在被动语态中则to 不能省掉。
I saw him dance.=He was seen to dance.The boss made them work the whole night.=They were made to work the whole night.4) would rather，had better：5) Why… / why not…：6) help 可带to，也可不带to, help sb (to) do sth：7) but和except：but前是动词do时，后面出现的动词用不带to的动词不定式。
8) 由and, or和than连接的两个不定式，第二个to 可以省去：9) 通常在discover, imagine, suppose, think, understand等词后，可以省去to be：He is supposed (to be) nice. 他应该是个好人。
举例：He wants to do nothing but go out.He wants to move to France and marry the girl.比较： He wants to do nothing but go out.He wants to believe anything but to take the medicine.典型例题1) ---- I usually go there by train.---- Why not ___ by boat for a change?A. to try goingB. trying to goC. to try and goD. try going答案：D. why not 后面接不带to 的不定式，因此选D。
不带to的不定式
不带to的不定式不带to的不定式1)在表示生理感觉的动词后的不定式不带to。
这类词有:feel 觉得 observe 注意到,看到 overhear听到watch注视 listen to听perceive察觉,感知notice注意 see看见 look at看 hear听On seeing the young child fell into the lake,Eric sprang to his feet,and went on the rescue.2)另一类是某些使役动词,如make, let,have等。
如:Let him do it.让他做吧。
I would have you know that I am ill.我想要你知道我病了。
(注):①上述感觉动词与使役动词转换为被动结构时.其后的不定式一般需带to,如: He was seen to come.The boy was made to go to bed early.②在动词find与help之后,不定式可带to亦可不带to,如:He was surprised to find the sheep (to) break fence at this season.他发现羊在此季节越出栅栏,感到惊讶。
3)在do nothing/anything/everything but(except)结构中。
例如:Last night I did nothing but watch TV.昨天晚上,我除了看电视别的什么也没有干。
但是,如果谓语动词不是“do nothing,anything,everything”,那么but(except)所跟的不定式则仍须带。
The doctor told him nothing but to stop smoking.医生除了让他戒烟,其它什么都没有说。
There was nothing for them to do but to remain silent.除了保持沉默以外,他们没有别有别的办法。
(完整版)省略to的动词不定式用法归纳
省略to的动词不定式用法归纳一、使役动词与to的省略当不定式用于let, make, have等使役动词后作宾语补足语，不定式必须省略to。
如：Let me have another cup of tea.给我再来一杯茶。
She had him dig away the snow.她让他把雪挖走。
They made him tell them everything.他们强迫他把一切全告诉他们。
但是，当使役动词用于被动语态时，其后的不定式则必须要带to。
如：他被迫一天工作20小时。
误：He was made work twenty hours a day.正：He was made to work twenty hours a day.注意，表示使役意义的let和have很少用于被动语态。
另外注意，force, oblige等虽然也表示“使”，但它们后用作宾语补足语的不定式必须带to。
如：They forced her to sign the paper.他们强迫她在文件上签字。
The law obliged parents to send their children to school.法律要求父母送子女上学。
考例：1.The teacher forbade ________ our seats. to leave leavingC.to leaveD.to leaving2.Mary had her friend ________ the best one.A.chooseB.chosenC.choseD.to choose3.The girl was ma de _________ she didn’t love at all.A.marry a manB.to marry a manC.to marry with a manD.married with a man二、感觉动词与to的省略当不定式用于表示感觉的动词feel, hear, notice, observe, see, watch, look at, listen to等作宾语补足语时，不定式必须省略to。
不带to的动词不定式通常有下面十八种情况
(1)We found the farm crops(to) do well.
(2)I find the Chinese people to be happy and cheerful.
(8)I had sooner live on a farm than in the city.
(9)He would sooner resign than take part in such dishonest business deeds.
(8)He observed someone open the door.
(9)I did not perceive anyone come in.
(10)He beheld her go out.
(5)Could you do something for me?
(6)You shall go at once.
(7)He might be working in the office now.
(4)I heard her play the piano.
(5)He listend to us talk.
(6)I felt the floor move.
(7)I didn’t notice you enter.
不带to的动词不定式通常有下面十八种情况.txt今天心情不好。我只有四句话想说。包括这句和前面的两句。我的话说完了对付凶恶的人，就要比他更凶恶；对付卑鄙的人，就要比他更卑鄙没有情人味，哪来人情味 拿什么整死你，我的爱人。收银员说：没零钱了，找你两个塑料袋吧！ 不带to的动词不定式通常有下面十八种情况
英语中不带 to 的不定式
不定式有带to 和不带to 两种，以下例举不带to 的不定式。
一、助动词shall, should, will, would, may, might, do, did, can, could, must, need, dare 后接不带to 的不定式，例如：shall:I shall invite them.我将邀请他们。
should:You shouldn't drink and drive.你不该酒后驾车。
will:How long will you be staying in Paris?你将在巴黎待多久？would:We said we would keep them.我们说过要保存它们的。
may:That may or may not be true.这可能是真的，也可能不是。
might:He said he might come tomorrow.他说他明天可能来。
do:I don't like fish.我不喜欢鱼。
Don’t be late!别迟到！did:They didn't go to Paris.他们没去巴黎。
He didn’t eat meat.他不吃肉。
can:He can speak English.他会说英语。
could:She said that she couldn't come.她说她来不了啦。
must:We must go now.我们现在必须走了。
need:You need not go.你不必去。
dare:He dare not refuse.他不敢拒绝。
二、当need 和dare 用作实义动词时，后面接带to 的不定式，例如：need:I need to get some sleep.我需要睡会儿觉。
dare:Did he dare to do that?他敢那样做吗？三、感官动词 see, hear 等的直接宾语后面可以接不带to 的不定式作宾语补语，表示动作已经做过或是完成了，例如：see:I saw her go.我看见她走了。
九类不带to的动词不定式
九类不带to的动词不定式（一）作使役动词let, have, make的宾语补足语的动词不定式不带to。
例如：She let her child play in the park. 她让她的孩子在公园里玩耍。
I had him arrange for a car. 我叫他给我安排了一辆车。
She made her children wash their hands before eating. 她要她的孩子们在吃东西前洗手。
注意：当使役动词make用于被动语态时，则该动词必须加上to。
例如：He was made to leave school by his father's death. 由于他爸爸的死，他被迫离开了学校。
（二）作感官动词see, watch, hear, feel, notice, observe等的宾语补足语的动词不定式不带to。
例如：I saw him cross the street. 我看见他横穿马路。
I felt the ship roll. 我们感觉船在摇晃。
注意：当此类动词用于被动语态时（watch一般不用于被动语态），则充当主语补足语的动词不定式要带动词不定式符号to。
例如：He was seen to enter the office. 有人看见他进了办公室。
（三）why (not) + 不带to的动词不定式。
例如：Why not come and see me tomorrow? 明天来找我怎么样？（四）had better + 不带to的动词不定式。
例如：You'd better go now. 你最好现在走。
（五）rather than位于句首时，其后用不带to的不定式，但rather than 在句中时，其后的动词不定式可以带to，也可以不带toRather than ride on a crowded bus,he always prefers to ride a bicycle. He prefers to rent a car rather than(to) have one of his own.（六）在find后作宾语补定语的动词不定式有时可以省to，但如动词为be，那么一般不省to，要省一起省略"to be"We found the farm crops(to) do well.I find the Chinese people to be happy and cheerful.I found this to be true in all the cities.（七）在but(=except),besides,than后的动词不定式一般要带to，但如果其前有作谓语的实义动词do，则不定式不带toThe soldier has no choice but to obey.He did not have any choice but to obey.She did nothing but clean the dishes.（八）两个或两个以上的动词不定式并列在一起时，第一个不定式带to，后面的不定式一般省去toHer job is to take care of the children and wash clothes.（九）在动词help后作宾语补足语的动词不定式可以带to，也可以不带，在英国英语中，多用不带to的不定式，但在英国英语中，help+宾语+不定式结构中，用不带to的不定式表示主语直接参与不定式的表示的动作，用带to的不定式表示主语没有直接参与不定式的表示的动作。
高考英语省略to的动词不定式八种情况
高考英语省略to的动词不定式八种情况一、感觉动词后省略to的情况主语+ (四看see/watch/notice/look at,三使役let/make/have，两听listen to/hear, 一感觉feel)+宾语+do sth，省略to。
1. 在感觉动词后用作宾语补足语的不定式必须省略to。
1）这里所说的感觉动词主要包括see, hear, observe, notice, feel, watch等。
但是它们用于被动语态时，其后的不定式必须带to。
如：The woman was seen to enter a bank. 有人看见这个女人进了一家银行。
但是，用于以上句型的动词notice 和watch和通常不用于被动语态。
2）类似地，动词look at和listen to后用作宾语补足语的不定式也不带to。
如：We listened to the old man tell his story. 我们听这位老人讲述他的经历。
3）若动词feel后用作宾语补足语的不定式为to be，则要带to(其他情况不带to)。
如：They felt the plan to be unwise. 他们认为这个计划不明智。
4）若不定式为完成式，通常应带to。
如：I noticed her to have come early. 我注意到她来得很早。
2. 使役动词后省略to的情况在let, make, have等使役动词后用作宾语补足语的不定式必须省略to。
如：My mother wouldn’t let me go to the film. 我妈妈不会让我去看电影的。
1) 当使役动词用于被动语态时，要补上在主动语态中省略的to(主要是指make，let和have很少用于被动语态)。
2) force, oblige等虽然也表示“使”，但它们后用作宾语补足语的不定式必须带to。
如：He forced me to go with them. 他迫使我同他们一起去。
246 不带to的不定式
246 不带to的不定式A can，do，may，must，shall，will之后接不带to的不定式：They could do it today．他们可以今天做这件事。
I may as well start at once．我还不如马上就动身。
He will probably object．他可能会反对。
B need和dare之后也接不带to的不定式，但它们不作为情态动词而是同助动词do／did或will／would连用时除外：You needn’t say anything．你不必说什么。
但是说：You don’t／won’t need to say anything．你不需要／将不需要说什么。
I dared not wake him．我不敢叫醒他。
但是说：I didn’ t／wouldn’ t dare（to） wake him．我没敢／不敢叫醒他。
理论上，在最后一个例句中要求用to，但实际上常被省略。
按语法规则来说，如果dare和used用为助动词，它们就像大多数助动词一样后面接不带to的不定式；如果它们用为普通动词并与do／ did等连用，就像普通动词一样后面接带to的不定式。
C feel， hear， see和 watch：I heard him lock the door．我听见他锁了门。
I saw／watched him drive off．我看见他开车走了。
但see和hear在被动语态的句子中要与带to的不定式连用：He was seen to enter the office．有人看见他进了办公室。
He was heard to say that…有人听见他说过……但feel，hear，see和watch经常是与现在分词连用：I heard them shouting．我听到他们在大声喊叫。
（参见第273节。
）D let在主动语态和被动语态的句子中都与不带to的不定式连用。
英语中不定式省略to的10种情况
英语中不定式省略to的10种情况一、使役动词与to的省略当不定式用于let, make, have等使役动词后作宾语补足语，不定式必须省略to。
如：Let me have another cup of tea. 给我再来一杯茶。
She had him dig away the snow. 她让他把雪挖走。
They made him tell them everything. 他们强迫他把一切全告诉他们。
但是，当使役动词用于被动语态时，其后的不定式则必须要带to。
如：他被迫一天工作20小时。
误：He was made work twenty hours a day.正：He was made to work twenty hours a day.注意，表示使役意义的let和have很少用于被动语态。
另外注意，force, oblige等虽然也表示“使”，但它们后用作宾语补足语的不定式必须带to。
如：They forced her to sign the paper. 他们强迫她在文件上签字。
The law obliged parents to send their children to school. 法律要求父母送子女上学。
二、感觉动词与to的省略当不定式用于表示感觉的动词feel, hear, notice, observe, see, watch, look at, listen to等作宾语补足语时，不定式必须省略to。
如：We all felt the house shake. 我们都感觉这房子在震动。
I heard him go down the stairs. 我听见他下楼了。
Did you notice her leave the house? 她离开屋子你注意到了吗?I watched her get into the car. 我看着她上了车。
但是，当feel后用作宾语补足语的不定式为to be时，则不能省略to。
英语中的动词不定式构成
动词不定式构成：to+ do(动词原形)否定式：not to+do 动词原形动词不定式特点：动词不定式没有人称和数的变化，在句子中不能独立作谓语。
可以在句子中作主语、宾语、表语、宾语补足语、定语、状语.一. 带to的不定式结构1. 我们学过的能直接跟带to的不定式结构的动词主要有：want, ask, tell, hope, learn, try, decide, forget, remember, like , love, stop, go, come等。
二. 不带to的不定式结构以下几种情况使用不带to的动词不定式：1. 在固定词组had better之后。
注意：had better的否定形式是had better not do sth.。
例如：You had better go home now. 你最好现在回家。
It's cold outside. You’d better not go out. 外面很冷，你最好不要出去。
2. 在let, make, see, feel, watch, hear等感官或使役动词后，要跟不带to的动词不定式作宾语补足语。
例如：I made them give me the money back. 我迫使他们把钱还给我。
I didn’t see you come in. 我没看见你进来。
3. 在引导疑问句的why not之后。
“Why not+不带to的不定式”是“Why don’t you do…”的省略，可以用来提出建议或劝告。
例如: Why not go with us? 为什么不和我们一起去呢？Why not take a holiday? =Why don’t you take a holiday? 为什么不休假呢？三．动词不定式的句法功能：（一）作主语不定式结构作主语时，现代英语倾向于采用it作形式主语，而把不定式结构后置的形式。
e.g. It’s easy (for me) to do that.我做这事太容易了。
不定式带to和不带to的总结.doc
不定式带to和不带to的总结作为非限定动词形式的一种，不定式由to+动词原形构成。
在使用中会出现带to与不带to的情况，那么，什么情况下需要带to，什么情况下不能带to呢？下面给大家做个总结：一般情况之下，动词不定式都带to，但在某些特殊情况下，不定式不带to。
1、情态动词后动词不定式不带to情态动词包括will、would、shall、should、can、could、may、might、must、need、dare等。
例如：She will study French soon.她不久就要学法语了。
You need say something to them.你得和他们说点什么。
2、在cannot but、had better、would rather、might as well 等短语之后，动词不定式不带to。
例如：Wed rather have a meeting for this problem.为解决这个问题我们宁愿开一次会议。
He cannot but follow the teachers.他只能跟着老师走了。
3、在let后动词不定式不带to。
例如：Let it go.随它去吧。
4、在have、make do结构中，动词不定式也不带to。
例如：He made students speak English Loudly.他让学生大声说英语。
Please have these boys stand in the second row.请让这些男孩子们站在第二排。
但是要注意，make do结构变为被动语态的时候，不定式要带to。
例如：She was made to get up at five.她五点就被叫起来了。
5、表示感觉的动词后，不定式也不带to。
这类动词有see、watch、feel、smell、hear等。
例如：We saw him ran very fast.我们看到他跑的非常快。
不带to的动词不定式
不带to的动词不定式有哪些不定式是英语动词的非限定形式之一，是英语中一种非常活跃的语言现象，不带to的不定式（bare infinitive）是我们学习、掌握和运用这一语法现象的难点。
本文的目的就是要对不带to的不定式作一粗浅的探讨。
首先要指出的是，不带to的不定式的使用实际上非常普遍，主要用在情态动词和助动词will，shall，would，should，can，could，may，might，must…以及在作为情态动词的need和dare 之后。
但因为这一点在学习英语的过程中极易掌握，故不在此赘述。
除此以外，在下列情况下也要使用不带to的动词不定式。
1．在see，feel，hear，watch，observe，listen to，look at, notice等感官动词或短语以及let，have，make等表示祈使意义的动词后面；不定式作宾语补足语不能带to；help后面的不定式可以不带to，也可以保留to；know在一定的条件下，后面的不定式作宾语补足语时可以不带to。
例如：I saw the man come out of the house．I heard her say that she was from Japan．We felt the house shake．They watched the sun sink into the sea．Did you notice him stop？They did not observe Jim come in and go upstairs．She was listening to him climb the stairs．Look at the boy run！I'll let you know as soon as I hear from her．I had him mend my watch．Electricity makes motors run．He helped me（to）plant trees．I have never known him sing so beautifully．不带to的动词不定式跟在上述动词后面时，情况比较复杂，有以下几个问题须特别注意：（1）当上述句子变成被动语态时，原来作宾语补足语的不定式则相应地成为主语补足语。
省略to的动词不定式用法归纳
省略to的动词不定式用法归纳一、使役动词与to的省略当不定式用于l et, make, have等使役动词后作宾语补足语，不定式必须省略to。
如：Let me have another cup of tea.给我再来一杯茶。
She had him dig away the snow.她让他把雪挖走。
They made him tell them everyth ing.他们强迫他把一切全告诉他们。
但是，当使役动词用于被动语态时，其后的不定式则必须要带to。
如：他被迫一天工作20小时。
误：He was made work twentyhours a day.正：He was made to work twentyhours a day.注意，表示使役意义的let和ha ve很少用于被动语态。
另外注意，force, oblige等虽然也表示“使”，但它们后用作宾语补足语的不定式必须带t o。
如：They forcedher to sign the paper.他们强迫她在文件上签字。
The law obliged parents to send their childre n to school.法律要求父母送子女上学。
考例：1.The teacher forbade ________ our seats. to leave leavingC.to leaveD.to leaving2.Mary had her friend________ the best one.A.chooseB.chosenC.choseD.to choose3.The girl was made _________shedidn’tloveatall.A.marry a manB.to marry a manC.to marry with a manD.married with a man二、感觉动词与to的省略当不定式用于表示感觉的动词feel, hear, notice,observe, see, watch, look at, listento等作宾语补足语时，不定式必须省略to。
不带to的动词不定式
不带to的动词不定式有哪些不定式是英语动词的非限定形式之一，是英语中一种非常活跃的语言现象，不带to的不定式（bare infinitive）是我们学习、掌握和运用这一语法现象的难点。
本文的目的就是要对不带to的不定式作一粗浅的探讨。
首先要指出的是，不带to的不定式的使用实际上非常普遍，主要用在情态动词和助动词will，shall，would，should，can，could，may，might，must…以及在作为情态动词的need和dare之后。
但因为这一点在学习英语的过程中极易掌握，故不在此赘述。
除此以外，在下列情况下也要使用不带to的动词不定式。
1．在see，feel，hear，watch，observe，listen to，look at, notice等感官动词或短语以及let，have，make等表示祈使意义的动词后面；不定式作宾语补足语不能带to；help后面的不定式可以不带to，也可以保留to；know在一定的条件下，后面的不定式作宾语补足语时可以不带to。
例如：I saw the man come out of the house．I heard her say that she was from Japan．We felt the house shake．They watched the sun sink into the sea．Did you notice him stop？They did not observe Jim come in and go upstairs．She was listening to him climb the stairs．Look at the boy run！I'll let you know as soon as I hear from her．I had him mend my watch．Electricity makes motors run．He helped me（to）plant trees．I have never known him sing so beautifully．不带to的动词不定式跟在上述动词后面时，情况比较复杂，有以下几个问题须特别注意：（1）当上述句子变成被动语态时，原来作宾语补足语的不定式则相应地成为主语补足语。
巧记不带to的动词不定式
巧记不带to的动词不定式动词不定式的基本形式是“to+动词原形”，但在下列情况下，不定式不带to。
一、与前面不定式并列的不定式省略to两个或两个以上句法功能相同的动词不定式并列时，通常只是第一个动词不定式带to，后面的不定式则不带to。
如：They began to read and write.他们开始读和写。
二、在一些特殊动词后作宾补的不定式不带to我们可以把这类动词归纳为：一感（feel）、二听（hear，listen to）、三让（let，make，have）、四看（see，watch，notice，observe）。
如：I suddenly felt something brush against my arm. 我突然感觉到有什么东西拂着我手臂。
We often heard them sing.我们常常听到他们唱歌。
Now let me listen to you play.现在让我听你演奏。
I’ll have my brother repair the radio for you.我要让我哥哥给你修理收音机。
I saw her walk into the headmaster’s office.我看见她走进了校长办公室。
特别注意：当以上这些动词用于被动语态时，动词不定式作主语补足语时则要带to。
如：She was heard to sing in the next room.有人听到她在隔壁房间里唱歌。
三、一些特殊语言结构中的不定式不带to我们可以把这些特殊语言结构归纳为：一个“宁愿（would rather）”，二个“最好（had better，might as well）”，三个“不得不（can not but，can not help but，can not choose but）”。
如：We would rather wait till tomorrow.我们宁愿等到明天。
不定式省略to的九种情况
不定式省略to的九种情况一、使役动词后省略to的情况在let, make, have等使役动词后用作宾语补足语的不定式必须省略to。
如：My mother wouldn’t let me go to the film. 我妈妈不会让我去看电影的。
I don’t like milk, but mother made me drink it. 我不喜欢牛奶，可是母亲强迫我喝。
I would have him wait for me at the gate of the park. 我要他在公园门口等我。
注意： 1. 当使役动词用于被动语态时，要补上在主动语态中省略的to(主要是指make，let和have很少用于被动语态)。
2. force, oblige等虽然也表示“使”，但它们后用作宾语补足语的不定式必须带to。
如：He forced me to go with them. 他迫使我同他们一起去。
The police obliged him to leave. 警方强迫他离开。
二、感觉动词后省略to的情况在感觉动词后用作宾语补足语的不定式必须省略to。
如：I watched her get into the car. 我看着她上了车。
I saw the woman enter a bank. 我看见这个女人进了一家银行。
We often hear her sing this song. 我们经常听到她唱这首歌。
Did you notice her leave the house? 她离开屋子你注意到了吗?注意：1. 这里所说的感觉动词主要包括see, hear, observe, notice, feel, watch等。
但是它们用于被动语态时，其后的不定式必须带to。
如：The woman was seen to enter a bank. 有人看见这个女人进了一家银行。
但是，用于以上句型的动词notice 和watch和通常不用于被动语态。
英语常考不带to的动词不定式汇总
常考的英语不带to的动词不定式：一：情态动词（Modal Verbs）情态动词后面一般接不带to的动词不定式。
如：Can：能够，会I can play the piano. 我会弹钢琴。
Could：可以，能够She could speak French fluently. 她可以流利地说法语。
May：可能，可以You may come in now. 你现在可以进来了。
Might：或许，可能会It might rain later. 或许等会儿会下雨。
Will：将要，会They will arrive at noon. 他们将于中午到达。
Would：愿意，会He would love to go with you. 他很想和你一起去。
Should：应该You should listen to your parents. 你应该听你父母的话。
Must：必须We must finish this project by tomorrow. 我们必须在明天之前完成这个项目。
二：特殊动词（Special Verbs）这些动词表示某种特殊含义，后面也一般接不带to的动词不定式。
如：Let：让，允许Let me help you. 让我来帮你。
Make：使...She made him angry. 她让他生气了。
Help：帮助Can you help me carry this? 你能帮我拿这个吗？Watch：看，观看We are watching TV. 我们正在看电视。
三：感官动词（Sensation Verbs）这些动词表示感官体验，也一般接不带to的动词不定式。
如：Feel：感觉She feels tired after work. 她工作后感到疲倦。
See：看，看见I see a bird on the tree. 我看到树上有只鸟。
Hear：听，听见Can you hear the music? 你听到音乐了吗？四：动词短语（Verb Phrases）这些动词由一个动词和一个名词或形容词构成，也一般接不带to的动词不定式。
不带to的动词不定式 (1).
listen to, smell, feel, find, perceive(觉察，看见 ),behቤተ መጻሕፍቲ ባይዱld（书面用语“见到”)等
eg:I saw her cross the street # 除notice ,watch不用被动语态外，上述动词变 成被动语态时，其后的动词不定式就不省to
eg:She was seen to cross street.
6
# Why… / why not…： eg:Why not join us?
7
help 可带to，也可不带to, help sb (to) do sth
8
由and, or和than连接的两个不定 式，第二个to 可以省去 eg:Her job is to take care of the children and wash clothes.
3.使役动词作宾语补足语的动词不定 式不带to
# make ,let, have ,bid(吩咐), leave(=let) eg:I'll let him do it. # make和bid用于被动语态时，可以 带 可以不带 eg:He was made (to) laugh.
4
# 在cannot but ,cannot help but, have no choose but, had better (best), would (had) rather(sooner)…than…, 后的动词不 定一般不带to eg:When the country calls you for help, you cannot but go.
5
# rather than位于句首时，其后用不 带to的定式， # 但rather than在句中时，其后的动 词不定式可以带to，也可以不带to eg:Rather than cause trouble, he left. He prefers to rent a car rather than (to) have one of his own.
英语中不定式省略to的九种情况
英语中不定式省略to的九种情况一、使役动词后省略to的情况在let，make，have等使役动词后用作宾语补足语的不定式必须省略to。
如：My mother wouldn't let me go to the film. 我妈妈不会让我去看电影的。
I don't like milk，but mother made me drink it. 我不喜欢牛奶，可是母亲强迫我喝。
I would have him wait for me at the gate of the park. 我要他在公园门口等我。
注意：1. 当使役动词用于被动语态时，要补上在主动语态中省略的to(主要是指make，let和have很少用于被动语态)。
2. force，oblige等虽然也表示“使”，但它们后用作宾语补足语的不定式必须带to。
如：He forced me to go with them. 他迫使我同他们一起去。
The police obliged him to leave. 警方强迫他离开。
二、感觉动词后省略to的情况在感觉动词后用作宾语补足语的不定式必须省略to。
如：I watched her get into the car. 我看着她上了车。
I saw the woman enter a bank. 我看见这个女人进了一家银行。
We often hear her sing this song. 我们经常听到她唱这首歌。
Did you notice her leave the house？她离开屋子你注意到了吗？注意：1. 这里所说的感觉动词主要包括see，hear，observe，notice，feel，watch等。
但是它们用于被动语态时，其后的不定式必须带to。
如：The woman was seen to enter a bank. 有人看见这个女人进了一家银行。
但是，用于以上句型的动词notice 和watch通常不用于被动语态。
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不带to的动词不定式的十八种情况动词不定式通常带有符号to，叫做带to的动词不定式(infinitive with"to")，动词不定式有时不带符号to，叫做不带to的动词不定式(infinitive without"to")不带to的动词不定式通常有下面十八种情况一、与助动词do连用构成谓语动词的否定、疑问和强调形式。
(1)he does not work in the factory.(2)Does she work here？(3)I did not see her yesterday.(4)Did they take you home?(5)He does look tired.(6)They did come yesterday.二、与情态动词连用构成复合谓语(1)I can speak English.(2)May I come in?(3)Dare he swim across the river?(4)We must work,and above all we must believe in ourselves.(5)Could you do something for me?(6)You shall go at once.(7)He might be working in the office now.(8)I don't think you need have come yesterday.(9)They should be here by now.(10)If you will go into the fields and turn over a few big stones,you are sure to uncover a city of ant"people".但与情态动词ought(to)连用时通常带to，和used(to)连用时必须带to三、在表示感觉的动词如：see,look.at,watch,hear,listento,feel,notice,observe,perceive(觉察，看见),behold（书面用语“见到”）等后用作宾语补足语的动词不定。
(1)I saw her cross the street.(2)He looked at the children walk up the hill.(3)I watched the boy cross the road.(4)I heard her play the piano.(5)He listend to us talk.(6)I felt the floor move.(7)I didn’t notice you enter.(8)He observed someone open the door.(9)I did not perceive anyone come in.(10)He beheld her go out.但除notice,watch不用被动语态外，上述动词变成被动语态时，其后的动词不定式就不省to (1)She was seen to cross street.(2)She was heard to play the piano.四、使役动词make,let,have,bid, leave(=let)后作宾语补足语的动词不定式不带to(1)You may take a horse to the water,but you can't make him drink.(2)I'll let him do it.(3)Don't forget to have them come.(4)Bid him go home.(5)Leave him go.动词have通常不用于被动语态，make和bid可用于被动语态，let偶尔也可用于被动态，用作主语补足语的动词不定式通常带to，但在make和let后有时可以不带to(1)John was made to wash the truck for a week as a punishment.(2)He was made(to) laugh.(3)The child was let(to) do it.五、never与know连用其后作宾语补足语的动词不定式可省to，其时态多为完成时态。
(1)I never knew him act without thinking.(2)I've never known it snow in July before.(3)I had never known her ask for pity before.有时ever与known连用也有上述用法。
(1)Have you ever known me tell a lie?六、在find后作宾语补定语的动词不定式有时可以省to，但如动词为be，那么一般不省to，要省一起省略"to be"(1)We found the farm crops(to) do well.(2)I find the Chinese people to be happy and cheerful.(3)I found this to be true in all the cities.(4)We found him (to be) honest/dishonest.七、在cannot but,cannot help but,can not choose but, had better(best),would(had) rather(sooner)…than…, would as soon…as…后的动词不定一般不带to(1)When the country calls you for help,you cannot but go.(2)He can't help but feel sorry for her.(3)he cannot choose but obey.(4)I had better leave now,or I'll be late.(5)He had best buy it now while it is still available.(6)I would rather go mountain—climbing than just take a walk.(7)My aunt invited me to the movies,but I said I had rather go on a picnic with the girls.(8)I had sooner live on a farm than in the city.(9)He would sooner resign than take part in such dishonest business deeds.(10)I'd rather not tell you.(11)He said he'd sooner die than betray his friend.八、在but(=except),besides,than后的动词不定式一般要带to，但如果其前有作谓语的实义动词do，则不定式不带to(1)The soldier has no choice but to obey.(2)He did not have any choice but to obey.(3)She did nothing but clean the dishes.(4)The children found there was nothing they could do with their money,except spend it on sweets.(5)There seemed nothing else to do but(to)send for a doctor.(but前的实义动词do不作谓语，but后的不定式可带to，也可不带to)(6)He did nothing else than laugh.(7)I could hardly do less than wait.九、不定式作表语时，如主语部分含有实义动词do，且句子的时态为一般现在时或一般过去时(多为is或was)，不定式可以带to也可不带to(1)What we must do now is(to) find anther person to help us.(2)All he could do was (to) rush into the room. 如句子的动词时态不是一般现在时或一般过去时，作表语的动词不定式一般要带to(1)She knew that all she would have to do would be to stop crying.十、rather than位于句首时，其后用不带to的不定式，但rather than在句中时，其后的动词不定式可以带to，也可以不带to(1)Rather than ride on a crowded bus,he always prefers to ride a bicyde.(2)Rather than cause trouble,he left.(3)He prefers to rent a car rather than(to) have one of his own.十一、在动词help后作宾语补足语的动词不定式可以带to，也可以不带，在英国英语中，多用不带to的不定式，但在英国英语中，help+宾语+不定式结构中，用不带to的不定式表示主语直接参与不定式的表示的动作，用带to的不定式表示主语没有直接参与不定式的表示的动作。
(1)He helped me repair the bicycle.(2)He helped me to repair the bicycle.(3)This kind of soap helps us to wash the clothes more easily.(4)The book will help you to study English. 但在被动语态中，help后的不定式要带to(1)She was helped to repair her bicycle. 在help(to) do sth不定式符号to可省略。
He helped(to) repair the machine.十二、两个或两个以上的动词不定式并列在一起时，第一个不定式带to，后面的不定式一般省去to(1)Her job is to take care of the children and wash clothes.(2)The girl doesn't know how to read and write.但如果是在对照场合，则不省去to(1)It is better to laugh than to cry.(2)The purpose of new technologies is to make life easier,not to make it more difficult.十三、than连接两个动词不定式没有对比关系时，后一个不定式可以省to(1)You might do worse than(to) do as he does.(2)I cannot do better than(to)get away for the few days.下面句子中than连接的不是两个动词不定式than后的动词不定式通常要带to(1)I know better than to believe him.(2)The beaten enemy had no choice than to surrender.下句中的more than(=only)可以看成复合副词，后面的动词不定式不带to(1)I did not more than make a beginning.十四、在why,why not后的不定式不带to(1)Why spend such a lot of money?(2)Why not join us? (3)Why don't you smoke?十五、实义动词dare在现代英语口语中，其所在的否定句或疑问句中，它后的动词不定式可省to，尤其在一般过去时中(1)Does he dare go?(2)We do not dare speak.(3)He did not dare go.(4)Did he dare go?(5)He dared go.(6)Dared he go?(7)He knew she dared not open his mouth.十六、在口语中，特别是在美国，祈使语气谓语动词和构成谓语的不定式go后面的不定式往往不带to(1)Go ask her.(2)I'll go see my brother.这种用法在英国口语中比较少见，一般在动词go后用连词and(1)GO and ask her.(2)I'll go and see my brother.十七、在"will you please…?"和would you please…?句型中，要用不带to的不定式。