have to(不得不)后加动词的什么形式
发布网友
发布时间：2022-04-24 04:11
共2个回答
热心网友
时间：2023-10-26 23:37
当主语为第三人称单数时用has to.
当句子是过去时用had to. We have to leave now. 我们不得不现在就离开.
He has to work on Sunday. 他不得不在周日工作.
I had to do my homework last Sunday. 上周日.我不得不做作业.
热心网友
时间：2023-10-26 23:38
不定式可以充当部分及物动词的宾语,也可以充当but和except等介词的宾语以及形容词的宾语.
1．作动词的宾语
①不定式可以充当部分及物动词的宾语.
Father likes to listen to music in silence. 父亲喜欢静静地听音乐.
He prefers to be starved to death rather than beg. 他宁愿饿死也不愿乞讨.
I never thought to meet you here. 我没想到在这里遇见你.
必背：
可接不定式作宾语的动词有：
afford负担得起
agree 同意
aim以……为目标
ask 要求
attempt 尝试
begin 开始
care喜爱
choose决定
continue 继续
decide 决定
desire 要求
determine决心
expect 期待
fail不能
forget 忘记
hate不愿
hope 希望
ntend 打算
manage设法
mean 打算
offer表示愿意
plan 计划
prefer 宁愿
pretend 假装
promise 答应
refuse 拒绝
remember记起
try努力
want 想要
wish希望
②在feel, find, make, think, consider等动词后,如果宾语带有宾语补足语时,人们常常用it作形式宾语,而把真实宾语放在宾语补足语之后.
I found it possible to work out the problem without a computer. 我发现有可能不用计算机而解出这道题目.
She made it a rule to get up at five. 她养成了五点起床的习惯.
I feel it a great honor to be invited to speak at the meeting before so many students. 我觉得被邀请在会上面对这么多学生发言是一件很光荣的事情.
③在表示“希望、打算”等动词（如hope, expect, intend, mean, want等）的过去式后,可接动词不定式的完成式来表示没有实现的动作.
I intended to have called on you, but was prevented from doing so. 我原想来拜访你的,但没来成.
I expected to have met him here last night. 我以为昨天晚上能在这里见到他.（但没做到）
We meant to have stayed there a week. 我们原打算在那儿呆一个星期的.
I wanted to have dropped her a line, but forgot to do so. 我原想写一封信给她,但忘记了.
提示：
表示“原打算、原以为”还可以用这类动词的过去完成时来表达.
I had intended to call on you. 我原想来拜访你的.
I had expected to meet him here last night. 我原以为昨天晚上能在这里见到他的.
We had meant to stay there a week. 我们原打算在那儿呆一个星期的.
2．作介词的宾语
不定式可以作介词but和except的宾语.
The teacher made no comments except to tell him to work hard. 老师除了叫他努力学习外,未做任何评价.
He had no choice but to sit there as usual. 他没有什么选择,只好像往常一样坐在那儿.
There is nothing we can do but wait patiently. 我们只能耐心等待.
D． 动词不定式作宾语补足语
不定式可以在“主语+谓语+宾语+宾语补足语”句型中充当宾语补足语.在这一句型中,宾语是动词不定式的逻辑主语.
1．在表示感觉的动词后作宾语补足语,并且不定式都不带to.这类动词有：see, hear, feel, watch, notice, observe, look at, listen to等.
I heard them sing yesterday. 昨天我听见他们唱歌了.
Did you see him go out 你看见他出去了吗?
I felt something crawl up my leg. 我感到有什么东西爬到我腿上了.
注意：转为被动语态时,原不带to的不定式要变成带to的不定式.notice和watch没有被动语态.
We saw the car stop.
The car was seen to stop. 我们看见这辆车停了下来.
2．在使役动词后作宾语补足语,不定式不带to.
这类动词有：make, let, have等.转为被动语态时,其后通常都用带to的不定式（have没有被动语态）.
有些动词跟不定式作宾语补足语时省去了to,这些动词有：
一感二听三让四观看.
一感：feel 二听：hear,listen to 三让：let,have,make 四观看：observe,see,watch.,look at
What would you have me do 你要我做什么?
She made him give up smoking. 她让他戒了烟.
Let him do whatever he wishes to do. 他想干什么就让他干吧.
Though he had often made his little sister cry, today he was made to cry by his little sister. 虽然经常是他弄哭小妹妹,但今天他却被小妹妹弄哭了.
3．在表示心理状态的动词后作宾语补足语.这类动词有：consider, think, believe, discover, find, imagine, judge, suppose, prove等.这类动词后的不定式通常是“to be+形容词或名词”结构,think, consider, find后的to be常可省略.
We consider him (to be) a good teacher. 我们认为他是一个好老师.
He proved that theory (to be) very important. 他证明那个理论是很重要的.
I thought her (to be) nice and honest the first time I met her. 我第一次见到她的时候就认为她人很好,很诚实.
4．在表示情感状态的动词后作宾语补足语.这类动词有：love, like, prefer, hate, want, wish, expect等.
I'd prefer you to leave him alone. 我希望你不要打扰他.
I don't want there to be any trouble. 我不想有任何麻烦.
5．动词advise, allow, ask, beg, command, tell, invite, force, oblige, get, help, encourage, persuade, permit, remind, request, order, warn, cause等后面,多接不定式短语作宾语补足语.
We don't allow such things to happen again. 我们不容许这种事情再发生.
Most of the parents agree to forbid their children to smoke. 大多数父母都同意禁止自己的孩子抽烟.
She asked me to answer the phone in her absence. 她请我在她不在的时候接电话.
Please remind me to leave her this note. 请提醒我留给她这张纸条.
She requested him to go with her. 她邀请他一同去.
热心网友
时间：2023-10-26 23:37
当主语为第三人称单数时用has to.
当句子是过去时用had to. We have to leave now. 我们不得不现在就离开.
He has to work on Sunday. 他不得不在周日工作.
I had to do my homework last Sunday. 上周日.我不得不做作业.
热心网友
时间：2023-10-26 23:38
不定式可以充当部分及物动词的宾语,也可以充当but和except等介词的宾语以及形容词的宾语.
1．作动词的宾语
①不定式可以充当部分及物动词的宾语.
Father likes to listen to music in silence. 父亲喜欢静静地听音乐.
He prefers to be starved to death rather than beg. 他宁愿饿死也不愿乞讨.
I never thought to meet you here. 我没想到在这里遇见你.
必背：
可接不定式作宾语的动词有：
afford负担得起
agree 同意
aim以……为目标
ask 要求
attempt 尝试
begin 开始
care喜爱
choose决定
continue 继续
decide 决定
desire 要求
determine决心
expect 期待
fail不能
forget 忘记
hate不愿
hope 希望
ntend 打算
manage设法
mean 打算
offer表示愿意
plan 计划
prefer 宁愿
pretend 假装
promise 答应
refuse 拒绝
remember记起
try努力
want 想要
wish希望
②在feel, find, make, think, consider等动词后,如果宾语带有宾语补足语时,人们常常用it作形式宾语,而把真实宾语放在宾语补足语之后.
I found it possible to work out the problem without a computer. 我发现有可能不用计算机而解出这道题目.
She made it a rule to get up at five. 她养成了五点起床的习惯.
I feel it a great honor to be invited to speak at the meeting before so many students. 我觉得被邀请在会上面对这么多学生发言是一件很光荣的事情.
③在表示“希望、打算”等动词（如hope, expect, intend, mean, want等）的过去式后,可接动词不定式的完成式来表示没有实现的动作.
I intended to have called on you, but was prevented from doing so. 我原想来拜访你的,但没来成.
I expected to have met him here last night. 我以为昨天晚上能在这里见到他.（但没做到）
We meant to have stayed there a week. 我们原打算在那儿呆一个星期的.
I wanted to have dropped her a line, but forgot to do so. 我原想写一封信给她,但忘记了.
提示：
表示“原打算、原以为”还可以用这类动词的过去完成时来表达.
I had intended to call on you. 我原想来拜访你的.
I had expected to meet him here last night. 我原以为昨天晚上能在这里见到他的.
We had meant to stay there a week. 我们原打算在那儿呆一个星期的.
2．作介词的宾语
不定式可以作介词but和except的宾语.
The teacher made no comments except to tell him to work hard. 老师除了叫他努力学习外,未做任何评价.
He had no choice but to sit there as usual. 他没有什么选择,只好像往常一样坐在那儿.
There is nothing we can do but wait patiently. 我们只能耐心等待.
D． 动词不定式作宾语补足语
不定式可以在“主语+谓语+宾语+宾语补足语”句型中充当宾语补足语.在这一句型中,宾语是动词不定式的逻辑主语.
1．在表示感觉的动词后作宾语补足语,并且不定式都不带to.这类动词有：see, hear, feel, watch, notice, observe, look at, listen to等.
I heard them sing yesterday. 昨天我听见他们唱歌了.
Did you see him go out 你看见他出去了吗?
I felt something crawl up my leg. 我感到有什么东西爬到我腿上了.
注意：转为被动语态时,原不带to的不定式要变成带to的不定式.notice和watch没有被动语态.
We saw the car stop.
The car was seen to stop. 我们看见这辆车停了下来.
2．在使役动词后作宾语补足语,不定式不带to.
这类动词有：make, let, have等.转为被动语态时,其后通常都用带to的不定式（have没有被动语态）.
有些动词跟不定式作宾语补足语时省去了to,这些动词有：
一感二听三让四观看.
一感：feel 二听：hear,listen to 三让：let,have,make 四观看：observe,see,watch.,look at
What would you have me do 你要我做什么?
She made him give up smoking. 她让他戒了烟.
Let him do whatever he wishes to do. 他想干什么就让他干吧.
Though he had often made his little sister cry, today he was made to cry by his little sister. 虽然经常是他弄哭小妹妹,但今天他却被小妹妹弄哭了.
3．在表示心理状态的动词后作宾语补足语.这类动词有：consider, think, believe, discover, find, imagine, judge, suppose, prove等.这类动词后的不定式通常是“to be+形容词或名词”结构,think, consider, find后的to be常可省略.
We consider him (to be) a good teacher. 我们认为他是一个好老师.
He proved that theory (to be) very important. 他证明那个理论是很重要的.
I thought her (to be) nice and honest the first time I met her. 我第一次见到她的时候就认为她人很好,很诚实.
4．在表示情感状态的动词后作宾语补足语.这类动词有：love, like, prefer, hate, want, wish, expect等.
I'd prefer you to leave him alone. 我希望你不要打扰他.
I don't want there to be any trouble. 我不想有任何麻烦.
5．动词advise, allow, ask, beg, command, tell, invite, force, oblige, get, help, encourage, persuade, permit, remind, request, order, warn, cause等后面,多接不定式短语作宾语补足语.
We don't allow such things to happen again. 我们不容许这种事情再发生.
Most of the parents agree to forbid their children to smoke. 大多数父母都同意禁止自己的孩子抽烟.
She asked me to answer the phone in her absence. 她请我在她不在的时候接电话.
Please remind me to leave her this note. 请提醒我留给她这张纸条.
She requested him to go with her. 她邀请他一同去.
热心网友
时间：2023-10-26 23:37
当主语为第三人称单数时用has to.
当句子是过去时用had to. We have to leave now. 我们不得不现在就离开.
He has to work on Sunday. 他不得不在周日工作.
I had to do my homework last Sunday. 上周日.我不得不做作业.
热心网友
时间：2023-10-26 23:38
不定式可以充当部分及物动词的宾语,也可以充当but和except等介词的宾语以及形容词的宾语.
1．作动词的宾语
①不定式可以充当部分及物动词的宾语.
Father likes to listen to music in silence. 父亲喜欢静静地听音乐.
He prefers to be starved to death rather than beg. 他宁愿饿死也不愿乞讨.
I never thought to meet you here. 我没想到在这里遇见你.
必背：
可接不定式作宾语的动词有：
afford负担得起
agree 同意
aim以……为目标
ask 要求
attempt 尝试
begin 开始
care喜爱
choose决定
continue 继续
decide 决定
desire 要求
determine决心
expect 期待
fail不能
forget 忘记
hate不愿
hope 希望
ntend 打算
manage设法
mean 打算
offer表示愿意
plan 计划
prefer 宁愿
pretend 假装
promise 答应
refuse 拒绝
remember记起
try努力
want 想要
wish希望
②在feel, find, make, think, consider等动词后,如果宾语带有宾语补足语时,人们常常用it作形式宾语,而把真实宾语放在宾语补足语之后.
I found it possible to work out the problem without a computer. 我发现有可能不用计算机而解出这道题目.
She made it a rule to get up at five. 她养成了五点起床的习惯.
I feel it a great honor to be invited to speak at the meeting before so many students. 我觉得被邀请在会上面对这么多学生发言是一件很光荣的事情.
③在表示“希望、打算”等动词（如hope, expect, intend, mean, want等）的过去式后,可接动词不定式的完成式来表示没有实现的动作.
I intended to have called on you, but was prevented from doing so. 我原想来拜访你的,但没来成.
I expected to have met him here last night. 我以为昨天晚上能在这里见到他.（但没做到）
We meant to have stayed there a week. 我们原打算在那儿呆一个星期的.
I wanted to have dropped her a line, but forgot to do so. 我原想写一封信给她,但忘记了.
提示：
表示“原打算、原以为”还可以用这类动词的过去完成时来表达.
I had intended to call on you. 我原想来拜访你的.
I had expected to meet him here last night. 我原以为昨天晚上能在这里见到他的.
We had meant to stay there a week. 我们原打算在那儿呆一个星期的.
2．作介词的宾语
不定式可以作介词but和except的宾语.
The teacher made no comments except to tell him to work hard. 老师除了叫他努力学习外,未做任何评价.
He had no choice but to sit there as usual. 他没有什么选择,只好像往常一样坐在那儿.
There is nothing we can do but wait patiently. 我们只能耐心等待.
D． 动词不定式作宾语补足语
不定式可以在“主语+谓语+宾语+宾语补足语”句型中充当宾语补足语.在这一句型中,宾语是动词不定式的逻辑主语.
1．在表示感觉的动词后作宾语补足语,并且不定式都不带to.这类动词有：see, hear, feel, watch, notice, observe, look at, listen to等.
I heard them sing yesterday. 昨天我听见他们唱歌了.
Did you see him go out 你看见他出去了吗?
I felt something crawl up my leg. 我感到有什么东西爬到我腿上了.
注意：转为被动语态时,原不带to的不定式要变成带to的不定式.notice和watch没有被动语态.
We saw the car stop.
The car was seen to stop. 我们看见这辆车停了下来.
2．在使役动词后作宾语补足语,不定式不带to.
这类动词有：make, let, have等.转为被动语态时,其后通常都用带to的不定式（have没有被动语态）.
有些动词跟不定式作宾语补足语时省去了to,这些动词有：
一感二听三让四观看.
一感：feel 二听：hear,listen to 三让：let,have,make 四观看：observe,see,watch.,look at
What would you have me do 你要我做什么?
She made him give up smoking. 她让他戒了烟.
Let him do whatever he wishes to do. 他想干什么就让他干吧.
Though he had often made his little sister cry, today he was made to cry by his little sister. 虽然经常是他弄哭小妹妹,但今天他却被小妹妹弄哭了.
3．在表示心理状态的动词后作宾语补足语.这类动词有：consider, think, believe, discover, find, imagine, judge, suppose, prove等.这类动词后的不定式通常是“to be+形容词或名词”结构,think, consider, find后的to be常可省略.
We consider him (to be) a good teacher. 我们认为他是一个好老师.
He proved that theory (to be) very important. 他证明那个理论是很重要的.
I thought her (to be) nice and honest the first time I met her. 我第一次见到她的时候就认为她人很好,很诚实.
4．在表示情感状态的动词后作宾语补足语.这类动词有：love, like, prefer, hate, want, wish, expect等.
I'd prefer you to leave him alone. 我希望你不要打扰他.
I don't want there to be any trouble. 我不想有任何麻烦.
5．动词advise, allow, ask, beg, command, tell, invite, force, oblige, get, help, encourage, persuade, permit, remind, request, order, warn, cause等后面,多接不定式短语作宾语补足语.
We don't allow such things to happen again. 我们不容许这种事情再发生.
Most of the parents agree to forbid their children to smoke. 大多数父母都同意禁止自己的孩子抽烟.
She asked me to answer the phone in her absence. 她请我在她不在的时候接电话.
Please remind me to leave her this note. 请提醒我留给她这张纸条.
She requested him to go with her. 她邀请他一同去.
热心网友
时间：2023-10-26 23:37
当主语为第三人称单数时用has to.
当句子是过去时用had to. We have to leave now. 我们不得不现在就离开.
He has to work on Sunday. 他不得不在周日工作.
I had to do my homework last Sunday. 上周日.我不得不做作业.
热心网友
时间：2023-10-26 23:38
不定式可以充当部分及物动词的宾语,也可以充当but和except等介词的宾语以及形容词的宾语.
1．作动词的宾语
①不定式可以充当部分及物动词的宾语.
Father likes to listen to music in silence. 父亲喜欢静静地听音乐.
He prefers to be starved to death rather than beg. 他宁愿饿死也不愿乞讨.
I never thought to meet you here. 我没想到在这里遇见你.
必背：
可接不定式作宾语的动词有：
afford负担得起
agree 同意
aim以……为目标
ask 要求
attempt 尝试
begin 开始
care喜爱
choose决定
continue 继续
decide 决定
desire 要求
determine决心
expect 期待
fail不能
forget 忘记
hate不愿
hope 希望
ntend 打算
manage设法
mean 打算
offer表示愿意
plan 计划
prefer 宁愿
pretend 假装
promise 答应
refuse 拒绝
remember记起
try努力
want 想要
wish希望
②在feel, find, make, think, consider等动词后,如果宾语带有宾语补足语时,人们常常用it作形式宾语,而把真实宾语放在宾语补足语之后.
I found it possible to work out the problem without a computer. 我发现有可能不用计算机而解出这道题目.
She made it a rule to get up at five. 她养成了五点起床的习惯.
I feel it a great honor to be invited to speak at the meeting before so many students. 我觉得被邀请在会上面对这么多学生发言是一件很光荣的事情.
③在表示“希望、打算”等动词（如hope, expect, intend, mean, want等）的过去式后,可接动词不定式的完成式来表示没有实现的动作.
I intended to have called on you, but was prevented from doing so. 我原想来拜访你的,但没来成.
I expected to have met him here last night. 我以为昨天晚上能在这里见到他.（但没做到）
We meant to have stayed there a week. 我们原打算在那儿呆一个星期的.
I wanted to have dropped her a line, but forgot to do so. 我原想写一封信给她,但忘记了.
提示：
表示“原打算、原以为”还可以用这类动词的过去完成时来表达.
I had intended to call on you. 我原想来拜访你的.
I had expected to meet him here last night. 我原以为昨天晚上能在这里见到他的.
We had meant to stay there a week. 我们原打算在那儿呆一个星期的.
2．作介词的宾语
不定式可以作介词but和except的宾语.
The teacher made no comments except to tell him to work hard. 老师除了叫他努力学习外,未做任何评价.
He had no choice but to sit there as usual. 他没有什么选择,只好像往常一样坐在那儿.
There is nothing we can do but wait patiently. 我们只能耐心等待.
D． 动词不定式作宾语补足语
不定式可以在“主语+谓语+宾语+宾语补足语”句型中充当宾语补足语.在这一句型中,宾语是动词不定式的逻辑主语.
1．在表示感觉的动词后作宾语补足语,并且不定式都不带to.这类动词有：see, hear, feel, watch, notice, observe, look at, listen to等.
I heard them sing yesterday. 昨天我听见他们唱歌了.
Did you see him go out 你看见他出去了吗?
I felt something crawl up my leg. 我感到有什么东西爬到我腿上了.
注意：转为被动语态时,原不带to的不定式要变成带to的不定式.notice和watch没有被动语态.
We saw the car stop.
The car was seen to stop. 我们看见这辆车停了下来.
2．在使役动词后作宾语补足语,不定式不带to.
这类动词有：make, let, have等.转为被动语态时,其后通常都用带to的不定式（have没有被动语态）.
有些动词跟不定式作宾语补足语时省去了to,这些动词有：
一感二听三让四观看.
一感：feel 二听：hear,listen to 三让：let,have,make 四观看：observe,see,watch.,look at
What would you have me do 你要我做什么?
She made him give up smoking. 她让他戒了烟.
Let him do whatever he wishes to do. 他想干什么就让他干吧.
Though he had often made his little sister cry, today he was made to cry by his little sister. 虽然经常是他弄哭小妹妹,但今天他却被小妹妹弄哭了.
3．在表示心理状态的动词后作宾语补足语.这类动词有：consider, think, believe, discover, find, imagine, judge, suppose, prove等.这类动词后的不定式通常是“to be+形容词或名词”结构,think, consider, find后的to be常可省略.
We consider him (to be) a good teacher. 我们认为他是一个好老师.
He proved that theory (to be) very important. 他证明那个理论是很重要的.
I thought her (to be) nice and honest the first time I met her. 我第一次见到她的时候就认为她人很好,很诚实.
4．在表示情感状态的动词后作宾语补足语.这类动词有：love, like, prefer, hate, want, wish, expect等.
I'd prefer you to leave him alone. 我希望你不要打扰他.
I don't want there to be any trouble. 我不想有任何麻烦.
5．动词advise, allow, ask, beg, command, tell, invite, force, oblige, get, help, encourage, persuade, permit, remind, request, order, warn, cause等后面,多接不定式短语作宾语补足语.
We don't allow such things to happen again. 我们不容许这种事情再发生.
Most of the parents agree to forbid their children to smoke. 大多数父母都同意禁止自己的孩子抽烟.
She asked me to answer the phone in her absence. 她请我在她不在的时候接电话.
Please remind me to leave her this note. 请提醒我留给她这张纸条.
She requested him to go with her. 她邀请他一同去.
热心网友
时间：2023-10-26 23:37
当主语为第三人称单数时用has to.
当句子是过去时用had to. We have to leave now. 我们不得不现在就离开.
He has to work on Sunday. 他不得不在周日工作.
I had to do my homework last Sunday. 上周日.我不得不做作业.
热心网友
时间：2023-10-26 23:38
不定式可以充当部分及物动词的宾语,也可以充当but和except等介词的宾语以及形容词的宾语.
1．作动词的宾语
①不定式可以充当部分及物动词的宾语.
Father likes to listen to music in silence. 父亲喜欢静静地听音乐.
He prefers to be starved to death rather than beg. 他宁愿饿死也不愿乞讨.
I never thought to meet you here. 我没想到在这里遇见你.
必背：
可接不定式作宾语的动词有：
afford负担得起
agree 同意
aim以……为目标
ask 要求
attempt 尝试
begin 开始
care喜爱
choose决定
continue 继续
decide 决定
desire 要求
determine决心
expect 期待
fail不能
forget 忘记
hate不愿
hope 希望
ntend 打算
manage设法
mean 打算
offer表示愿意
plan 计划
prefer 宁愿
pretend 假装
promise 答应
refuse 拒绝
remember记起
try努力
want 想要
wish希望
②在feel, find, make, think, consider等动词后,如果宾语带有宾语补足语时,人们常常用it作形式宾语,而把真实宾语放在宾语补足语之后.
I found it possible to work out the problem without a computer. 我发现有可能不用计算机而解出这道题目.
She made it a rule to get up at five. 她养成了五点起床的习惯.
I feel it a great honor to be invited to speak at the meeting before so many students. 我觉得被邀请在会上面对这么多学生发言是一件很光荣的事情.
③在表示“希望、打算”等动词（如hope, expect, intend, mean, want等）的过去式后,可接动词不定式的完成式来表示没有实现的动作.
I intended to have called on you, but was prevented from doing so. 我原想来拜访你的,但没来成.
I expected to have met him here last night. 我以为昨天晚上能在这里见到他.（但没做到）
We meant to have stayed there a week. 我们原打算在那儿呆一个星期的.
I wanted to have dropped her a line, but forgot to do so. 我原想写一封信给她,但忘记了.
提示：
表示“原打算、原以为”还可以用这类动词的过去完成时来表达.
I had intended to call on you. 我原想来拜访你的.
I had expected to meet him here last night. 我原以为昨天晚上能在这里见到他的.
We had meant to stay there a week. 我们原打算在那儿呆一个星期的.
2．作介词的宾语
不定式可以作介词but和except的宾语.
The teacher made no comments except to tell him to work hard. 老师除了叫他努力学习外,未做任何评价.
He had no choice but to sit there as usual. 他没有什么选择,只好像往常一样坐在那儿.
There is nothing we can do but wait patiently. 我们只能耐心等待.
D． 动词不定式作宾语补足语
不定式可以在“主语+谓语+宾语+宾语补足语”句型中充当宾语补足语.在这一句型中,宾语是动词不定式的逻辑主语.
1．在表示感觉的动词后作宾语补足语,并且不定式都不带to.这类动词有：see, hear, feel, watch, notice, observe, look at, listen to等.
I heard them sing yesterday. 昨天我听见他们唱歌了.
Did you see him go out 你看见他出去了吗?
I felt something crawl up my leg. 我感到有什么东西爬到我腿上了.
注意：转为被动语态时,原不带to的不定式要变成带to的不定式.notice和watch没有被动语态.
We saw the car stop.
The car was seen to stop. 我们看见这辆车停了下来.
2．在使役动词后作宾语补足语,不定式不带to.
这类动词有：make, let, have等.转为被动语态时,其后通常都用带to的不定式（have没有被动语态）.
有些动词跟不定式作宾语补足语时省去了to,这些动词有：
一感二听三让四观看.
一感：feel 二听：hear,listen to 三让：let,have,make 四观看：observe,see,watch.,look at
What would you have me do 你要我做什么?
She made him give up smoking. 她让他戒了烟.
Let him do whatever he wishes to do. 他想干什么就让他干吧.
Though he had often made his little sister cry, today he was made to cry by his little sister. 虽然经常是他弄哭小妹妹,但今天他却被小妹妹弄哭了.
3．在表示心理状态的动词后作宾语补足语.这类动词有：consider, think, believe, discover, find, imagine, judge, suppose, prove等.这类动词后的不定式通常是“to be+形容词或名词”结构,think, consider, find后的to be常可省略.
We consider him (to be) a good teacher. 我们认为他是一个好老师.
He proved that theory (to be) very important. 他证明那个理论是很重要的.
I thought her (to be) nice and honest the first time I met her. 我第一次见到她的时候就认为她人很好,很诚实.
4．在表示情感状态的动词后作宾语补足语.这类动词有：love, like, prefer, hate, want, wish, expect等.
I'd prefer you to leave him alone. 我希望你不要打扰他.
I don't want there to be any trouble. 我不想有任何麻烦.
5．动词advise, allow, ask, beg, command, tell, invite, force, oblige, get, help, encourage, persuade, permit, remind, request, order, warn, cause等后面,多接不定式短语作宾语补足语.
We don't allow such things to happen again. 我们不容许这种事情再发生.
Most of the parents agree to forbid their children to smoke. 大多数父母都同意禁止自己的孩子抽烟.
She asked me to answer the phone in her absence. 她请我在她不在的时候接电话.
Please remind me to leave her this note. 请提醒我留给她这张纸条.
She requested him to go with her. 她邀请他一同去.
