there be句式的时态由其中的谓语动词be来体现，它可以有多种时态形式：
1.一般现在时
例如1：There is still room for improvement. 还有改进余地。
例如2：There is nothing to be done now. 现在没有办法了。
2.一般将来时
例如1：There’s going to be trouble. 要出事了。
例如2：There will be rain next week. 下星期要下雨。
3.一般过去时
例如1：There was a lot to be done. 有很多事要做。
例如2：There wasn’t any change in him. 他没有什么变化。
4.现在完成时
例如1：There have been a lot of inquiries. 提出的询问有很多。
例如2：There have been a lot of enquiries. 进行过许多调查。
5.过去完成时
例如1：There had been many such occasions. 曾有许多这种情况。
例如2：There had been two sea fights between them. 他们之间发生了两场海战。
6.过去将来时
例如1：There would be endless rows if I was at home. 如果我在家会有吵不完的架。
例如2：Then there would be a plebiscite. 那么就会举行公民投票。
