I have been 是什么意思？

I have been是现在完成时态的语态,也可是现在完成时态的被动语态.

楼上举的例子很好:

我到过日本i have been to japan
我被打了i have been hit 表被动

have been

(+-ing动词)：现在完成进行式
例句与用法:
I have been away from Paris for two weeks.
我离开巴黎已经两星期了。
Flowers soon faded when they have been cut.
花剪下后很快就会枯萎。
Had he not saved me, I might have been drowned.
我可能溺死了，若非他救了我。
He is said to have been the richest man in Taiwan.
据说他以前是台湾最有钱的人。
The three children have been sponging on their grandparent for over ten years.
10多年来这3个孩子一直靠他们的姥爷、姥姥养活。
She is said to have been an actress about twenty years ago.
据说她在20年以前曾是一位女演员。

事态而已，没具体的意思，
勉强能翻译成 已经XXX了，您句子就是：哦~ 亲耐滴，俺已经……了

很多意思
我到过日本i have been to japan
我被打了i have been hit

have been是现在完成时态的语态