they are having a party tomorrow ,but we haven't been invited.

问题描述:

they are having a party tomorrow ,but we haven't been invited.
我有两个问题,they are having a party tomorrow ,将来时不是应该be going
第二个问题,后面怎么会又用现在完成时的被动了?

1 正常的应该是they are going to have a party tomorrow,但是have这个词比较特殊,可以直接用are having.
2 到目前为止,我们还没有被邀请.所以完成时被动语态.