I don't know whether we can or can't. Suppose we can.

我不知道这样是否可行，假设可以。

耶鲁公开课 - 死亡课程节选

You could use the "Is there" pattern to find out about whether there's a party and hopefully, you can receive an invitation.

你可以用“Is there”句型来确认是否有这样一个派对，希望自己能够得到邀请。

Is there 课堂 - SpeakingMax英语口语达人