have done和 have been的区分 有些情况写 have been未必是被动语态啊
比如 这个句子：There have been a great number of accidents lately.最近事故很多,这并不是一个被动句啊
同理：I haven't been very successful so far.请问如何区分have been 和have done
比如 Up till now he has won five prizes.
这个句子 可不可以说成 Up till now he has been won five prizes
此处的 been 是不是 be动词的过去分词？
He has never been abroad before.这里的been