to do 不定式表目的I have tried all I can do to do sth.Mr Wang made up his mind to devote all he could to improving his oral English.为什么不能理解成为了做某事呢?介词to怎么能作目的状语呢?

I DON'T HAVE MUCH TO DO.这个TO在这里是什么意思?是动词不定式吗? 我知道want sb to do sth中,动词不定式是做宾补,我想问一下,我要把TO后面的理解为动词不定式表目的对吗,为什么,比如I want you to have lunch,to have lunch理解成动词不定式表目的， Do you have anything to tell me?I don't have anything to do.这两句是不定式还是纯粹have sth。to do的句式？ 比如I want you to have lunch,to have lunch理解成动词不定式表目的,对吗, 表语中to do不定式表目的吗? to do 不定式表目的I have tried all I can do to do sth.Mr Wang made up his mind to devote all he could to improving his oral English.为什么不能理解成为了做某事呢?介词to怎么能作目的状语呢? TO 不定式表目的,举例说明, I have to do the homewoek 这个句子中的不定式做什么成份?求解答 All I have to do is learn English. 中的learn是不定式吗? ability to do 中动词不定式 to do 作定语还是 目的状语?原句 I feel sure about your own ability to do things and be successful I don’t know what to do 这是动词不定式做什么成分? I have homework to do句子分析请问动词不定式to do在这里面担当什么句子成分? I don't have enough time to spend with her.中的动词不定式做什么成分 i do nothing to help you.i do something to help you.不定式是后置定语还是状语表示目的 就真相 try to do sth.不定式是作状语还是宾语?I have tried to make my mother pay more attention to me.不定式是作状语还是宾语? 1.there isn't much I can do to help him这句话里怎么有4个动词（系动词 情态动词 实义动词 不定式）为什么不是I can help him,加do干嘛?2.he hasn't got as much work to do as I have.这句话里为什么有to do? 英语：什么动词前 , 动词不定式作定语,不能用不定式主动表被动例如 have give, show 做谓语时可用不定式主动表被动如：I have a lot of things to do this afternoon． (to do与things是动宾关系,与I是主谓关 如何区分不定式作后置定语与作状语?请看这两句.(高手请进)1.I can't find a quiet place to study.2.I have no courage to share with my friends my worries.第一句的不定式我理解为既可看作定语,也可看作目的状语.