been可以是be,也可以是go的过去分词。
It's 可以是It is ; It was ; It has ;a while表示一段时间。
1、It is been a while. = It is gone a while. 被动【一般现在】一会
2、It was been a while. = It was gone a while. 被动【一般过去】一会
3、It has been a while. = It has gone a while. 主动【现在完成】一会
1=3。如果把虚词 it 换成实词,就一目了然了哈,比如换成cat,动词也就清楚了啥。
是has been是动词be的过去式,这是现在完成时。
是has,has作为情态动词,been为动词
同意xmgzjcn