Question

有没有“think it+形容词+to do sth”这个句型结构？

Answer 1

有的。find/think/believe都可以是这样的。

例句：
1 I think that it is necessary to do exercises.---------这是宾语从句，that是宾语从句的连接词，think是主句的谓语动词。that后面的是从句部分。

2 we all think it necessary to do exercises.---------这是简单句，其中：
we all（主语） think (谓语)it（形式宾语） necessary（宾语补足语） to do exercises（真正主语）

Answer 2

有呀! think it+形容词+to do sth 认为做某事... it 作形式宾语, 不定式作真宾. 如:
I think it interesting to learn English .

Answer 3

有的。
think it necessary/possible/best etc
(=believe it is necessary,
possible etc)
　I thought it best to call first.
　I thought it appropriate to invite her to speak at the
meeting.

Answer 4

可以这样用，没问题，例句：Somebody thinks it hard to study English，but they never really try

Answer 5

没有这个用法