remember doing sth.记得做过某事
remember to do sth.记住去做某事
forget doing sth.忘记做过某事
forget to do sth.忘记要去做某事
stop doing sth.停止正在做的事
stop to do sth.停下来去做另外一件事
regret doing sth.后悔做过某事
regret to do sth.遗憾要去做某事(常接动词:say,tell,inform,
announce)
try doing sth.试一试做某事
try to do sth.努力去做某事
mean doing sth.意味着
mean to do sth.打算做某事
go on doing sth.继续做同一件事
go on to do sth.(做完某事)接着做另外一件事
sb. be said.据说。
sb. be believed.据认为
sb. be known.据了解
sb. be reported.据报道
sb. be considered.据认为
sb. be found.据发现
省略to的动词不定式
两个并列的不定式连用
由and or than 连接的两个不定式,第二个to可以省略
特殊句型中用原型
would rather . had better.
why not…
help
help可带to也可不带to
help sb.(to)do sth.
情态动词后
除ought to以外
使役动词后
let make have 等
助动词后
will/do/does/did.
做状语
目的状语
表目的短语to do/In order to/so as to/such as to
其中,in order to.可以放在句首,也可放在句中。
so as to.只能放在句中。
结果状语
常用结构
1. only/just to do /to been done。表示出乎意料的结果。
2. 形容词+enough(for sb.)to do。(对某人来说)足够做……
3. too…to do。太而不能。(表否定)
4. I'm glad/sorry/excited/angry…to do sth.
做独立成分
1.To be honest.说实在的,老实说。
2.To start/begin with.首先。
3.To make things worse.很糟糕的是。
4.To be(perfectly)frank.坦率的讲。
5.To be sure.的确,确定。
表示意料之外的结果(分词作结果状语表示顺其
自然的结果)
做定语
表将来
eg:The car to be bought is for her sister.
作定语的不定式为不及物动词时,后加与之搭配的介词。
eg:1.The Greens have a house to live in.
2.He have no place to live.
当to do的执行者是主语时,to do为主语来执行。to be done 则为他人执行。
eg:1.I have a lot of clothes to wash.(自己)
2.I have a lot of clothes to be washed.(别人)
被修饰词前有序数词,最高级,The last the only 等时,常用不定式做定语。
eg:He was the first students to get up in the morning.