话题 the same to you

问题 如果理解 for sb to do sth 的用法

There is an increasing tendency for us to make sales.老师，for us 如何理解，是不定式的逻辑主语吗？

问题 need sth to do sth是什么不定式

We need some old newspaper to put on the table.这是什么不定式?

问题 有sth is needed to doing的用法吗？

一篇文章里看到的句子：The no. is needed to tacking the shipping orders.另外，tack在这里是什么含义呢？

问题 be going to do sth 的不定式分析

I am going to paint the desk pink这句话里有不定式吗？其实我在纠结to和be going一家的还是和paint一家的。

问题 for those to have an impact if they do...请老师分析这里的语

...t's going to take some time though for those to have an impact if they do on the number of new cases.搞不清语法成分和句意：for those to have an impact if they do ...麻烦老师逐一详解。谢谢！

话题 It is kind of sb to do sth

话题 have/had (never) known sb/sth (to) do...

话题 It is adj of sb to do sth

话题 It is not for sb to do sth

话题 It is foolish for sb to do sth

问题 形容词+to do 的语态问题

He is easy to fool 中 to fool不能用被动式是因为该句的深层结构为 to fool him 作主语，是一个事件或活动充当真正意义上的主语It is easy to fool him.然后The book is interesting to buy中，为什么to buy不能用被动式？这里也并不是一个事件或活动...

问题 名词后的to do做什么成分。

例句：Since the beginning of 21st century, rapid social development has led to urgent need of new technologies to prop up the social progress.这个句子应该是正确的吧？其中to prop up the social progress，是什么用法呢？是宾补吗？还有类似的句子：Not considering such...

问题 口语中助动词当谓语用(You're about to.)

you don't know me，You're about to. 这里的about to是助动词, 为什么可以当谓语？

问题 物主代词后的动名词作什么成分

She is tired of you telling her what should not to do.请问，动名词 telling 做什么成份？谢谢老师们。