请问这个英语的非谓语形式what is the chance of there being a general election this yearbeing 修饰there 与there是什么关系?

问题描述:

请问这个英语的非谓语形式
what is the chance of there being a general election this year
being 修饰there 与there是什么关系?

there be句型的非谓语。

翻译过来是 今年有一次大选的大好机会.
there being 做OF的表语从句.