there be 结构的
there be 结构为非谓语形式时，be可以是不定式（to be）或（being），there 作逻辑
一、主语1. 有for引导，则用there to be。   It’s a great pity for there to be much trouble in the class.   太遗憾了，这个班上有多方面的麻烦。  It is common for there to be problems of communicatio
2. 没有for引导，则用there being。There being a public bus service is a great convenience to people. 公交车对人们十分方便。The prison is heavily guarded. There