You can’t consider him an honest man.和You can’t consider him as an honest man.那个对?You can’t consider him an honest man.You can’t consider him as an honest man.

You can’t consider him an honest man.和You can’t consider him as an honest man.那个对?
You can’t consider him an honest man.
You can’t consider him as an honest man.

Consider解释为“认为”的时候：Consider sb./sth+.(as)+形容词/名词.其中,as可以省略.
例句：1.We consider him honest.我们认为他很诚实.
例句：2.At first they considered me as a teacher.起初他们认为我是老师.

这两个都对的
consider sb./sth+.(as)+形容词/名词。其中，as可以省略，就是可加可不加。

都对，as可以省略