I am afraid that I can not be certain about that.

问题描述:

I am afraid that I can not be certain about that.
请问这that后面引导的是什么从句啊?
afraid已经作表语了,所以很疑惑后面的从句是什么成分。是不是宾语从句啊?

表语从句.不是宾语从句, afraid不是动词呀.只是 afraid意思上有点模糊,在中文意思有动词的意思,在英语上是形容词.如果把afraid换成别的词,比如happy就一目了然了