There happened to be a bus nearby.碰巧附近有辆公交车。
There appears to have been a nasty accident.似乎发生了一起严重事故。

4.there be 结构中除可以用be 外，还可以用其它动词。例如：
There came a scent of lime-blossom.飘来一阵菩提树的花香。
Once upon a time there lived a king in China.从前中国有一个国王。

非谓语动词形式：
There be 结构的非谓语动词形式是there to be 和there being 两种形式。在句中作主语、宾语和状语。
1. there being 结构起名词的作用，直接位于句首作主语，通常用it 作形式主语，并且用for引导。
There being a bus stop near my house is a great advantage.我家旁边有个公共汽车站，很是方便。
It is impossible for there to be any more.不可能再有了。

2. there be 结构作宾语时，通常用there to be ，常作这样一些词的宾语：
expect，like, mean, intend, want,prefer,hate等。
I expect there to be no argument about this.我期望关于这件事不要再争吵了。
I should prefer there to be no discussion of my private affairs.我宁愿不要讨论我的私事。
People don’t want there to be another war.人们不希望再有战争了。
另外，作介词宾语时，如果是介词for，只能用“there to be”其它介词用“there being”
The teacher was waiting for there to be complete silence.老师在等着大家都安静下来。
I never dreamed of there being any good chance for me.我做梦也没想到我会有好机会。

3. 作状语的there be 形式，通常用“there being”结构。
There being nothing else to do ,we went home.因为没有其他事可做，我们就回家了。
They closed the door ,there being no customers.因为没有顾客，他们的店关门了。