there have been是什么时态

there have been是现在完成时。

例句

There have been several muggings here recently.

最近这里发生了几起行凶抢劫案。

There have been strange happenings here lately.

这儿最近发生了一些怪事。

There have been proposals to drill for more oil.

有人提出了钻探更多石油的建议。

There have been minor squabbles about phone bills.

为电话账单已闹过口角。

There have been a whole slew of shooting incidents.

已经发生过大量枪击案。