Question

has been和had been 有什么区别？

能说详细一点吗，包括用法和典型一点的句子……

Answer 1

一个是现在完成时，一个是过去完成时
he has been worked in hospital
表示他过去在医院工作,现在有可能还在医院工作
单数或第三人称时用has

they have been worked in hospital
人称复指,第一二人称时用have

he had been worked in hospital
他过去在医院工作,现在不在了

Answer 2

have
been
和
has
been
只是根据前面主语的人称而定。都是一般现在完成时
简单来说如果前面是I,you,we以及复数形式的主语则是have
been
第3人称单数如he,she,it,则是用has
been
有been的话表示被动语态
had
been则是过去的过去，是过去完成时，和上面一样有been的话表示被动语态
如果都加done的话，都是表示已经做完某个事情，只是时态不同
had
been
单复数用法没有区别
第一第三人称都是用had

Answer 3

has been 系现在时，用于一般现在时
had been 系过去时，用于一般过去时