There be表示存在的“有”,他有各种时态，如:
一般现在时：there is/are；一般过去时：therewas/were.
一般将来时：there will be；过去将来时：there would be.
现在完成时：there has/have been；过去完成时：there had been.
扩展资料
例句：
There are several conjectures.
有几种推测。
There are two codes for London.
伦敦有两个电话区号。
There are no absolute rules.
没有绝对的准则。
