there have been 的用法

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/06/24 18:40:51

there have been 的用法
there be 是有什么什么.
have been是完成时.
求分析there have been

there be句型是倒装句,意思是"有",be的形式由be后第一个名词的单复数决定；
there have been,意思是"曾经有",是there be句型的现在完成时态形式,此时be后主语为复数名词,如果be后主语为单数名词,则应为there has been
如
There have been some encouraging signs over the past couple of months.
在过去的几个月里有一些令人鼓舞的迹象.
There has been a singer playing guitar at the bar for many months.
曾经有个歌手在酒吧里弹了几个月吉他.

there have been 的用法 there has/have been的用法 have been 的用法 have been的用法 have been 的用法? there has been的用法 have been done的用法 have been+adj的用法 have been doing 的用法, have ever been 的用法? have been on的用法 have been seeing /have been seen/ have seen的用法.