We found him to be dishonest.

为什么上句要用to be dishonest做宾语补语，而不直接使用形容词dishonest做宾语补语。

例如，上句为什么不可以说We found him dishonest.谢谢老师回答。

主语+find +宾语+ to be+(介词短语，形容词，名词） 强调动作的全过程 (具有动作过程描述；属于动态描述）

Mary tried several lines of work, but at last found herself as a teacher.
玛丽尝试了好几种工作,最后发现自己适合做教师。

We found the restaurant to be full.
我们看到这家宾馆已经客满了。

I found him to be much younger than I expected.
我发现他比我料想的要年轻得多。

I found myself to be in a dark forest.
我发现我来到一个阴森森的树林里。

Put your money in my business, and you could find yourself (to be) richer.
把你的钱投到我们公司,你会变得更富有。

They found the patient (to be) a small boy of nine years of age.
他们发现病人是个9岁的小男孩。

主语+find +宾语+形容词 （直接强调宾语具有某种特点/特征）（无动作过程描述;属于静态描述）

We found him dishonest.
我们发觉他不诚实。

Do you find him very bright?
你发现他很聪明吗?

People found the boy honest.
人们发现这孩子诚实。

I find this wine a little sour.
我总觉得这酒有酸味。

As a series of episodes,I find this book entertaining.
作为一部系列丛书,我觉得这本书很有趣。

At dawn we found ourselves back to the place we left the night before.
天亮时,我们发现我们回到了前一天晚上出发的地方。

The jury found the accused person guilty.
陪审团判定被告人有罪。

I found the door closed.
我发现门关着。

He found the boy tied to a tree.
他发现孩子被绑在一棵树上。

Then I found myself surrounded by half a dozen boys.
这时我发现自己被五六个小男孩围住了。

You will find me ever at your service.
你将发现我永远听命于你。

The road gradually widened until we found ourselves in a large valley.
路慢慢宽了起来,最后我们走进了一个广阔的山谷。

    Oxford Advanced Learner's Dictionary of Current English by A.S.Hornby, A.P.Cowie,etc. (1974) 中有一个例句：We found him (to be) dishonest [that he was dishonest].

    这个例句说明了：We found him to be dishonest.= We found him dishonest .= We found that he was dishonest.