Question

has been 和 had been 的用法和差别

Answer 1

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 2

has
done：现在完成时，表示以“现在”为基准，之前已经完成的动作。
had
done
：过去完成时，表示以“过去某一时间”为基准，之前已经完成的动作。
has
been
done：现在完成时的被动语态。
had
been
done
：过去完成时的被动语态。