Be said to do和be said to be doing和be said to have done有什么区别

问题描述:

Be said to do和be said to be doing和be said to have done有什么区别

一个是据说要做,一个是据说正在做,最后一个是据说已经做了

一个是据说要做,一个是据说正在做,最后一个是据说已经做了,所用时态不同

这三个都是被动短语,可翻译成“据说”,知识时态有区别而已.我各加一个主语造个简单的句子吧,这样有助于你的理解.
He is said to come.据说他会来
He is said to be coming,据说他正在来的路上.
He is said to have come,据说他来过了.