存在句的非限定形式
1）存在句的非限定形式
there to be 和 there being结构

2）there to be 和 there being结构用法与区别
there to be：作for 介词补语
作动词（except, want, like, prefer, hate…）的宾语
eg.
They planned for there to be another meeting
Members like there to be plenty of choice.  

there being : 作除for外的介词的补语
                       作主语和状语
eg.
John was relying on there being another opportunity.
There being a bus stop so near the house is a good advantage.

存在句的非限定形式与限定形式的转化
eg. For there to be so few people in the street was unusual. = It was unusual that there were so few people in the street.