Question

have been和has been用法有何区别？

。

Answer 1

have been和has been 都是现在完成时态
主语是第三人称单数(he , She,it,某人，等)用has been
其它人称用have been
如
He/ She / Anna has been to Beijing.
We /They / Amy and Miller have been to Beijing.

Answer 2

主语不同，主语为第一，第二人称，或者第三称复数，用have ，主语是第三人称单数或者名字用has 都是现在完成时的结构。

Answer 3

have been 是复数，has been 是第三人称单数
We have been to Beijing twice.
She has been to Beijing twice.

Answer 4

现在完成时结构。区别在于主语是第三人称单数（he，she，it）时，用has而不是have