We must allow that he is a good teacher.= We must allow him to be a good teacher.

问题描述:

We must allow that he is a good teacher.= We must allow him to be a good teacher.
这两个相等吗?is 和 to be到底有什么区别啊?

不相等..
We must allow that he is a good teacher
我们必须承认他是一个好老师
We must allow him to be a good teacher.
我们必须允许他成为一个好老师
to be 含有将来的意思
is 是现在的状态