八大时态there be结构的构成是什么？

八大时态there be结构的构成是什么？

八大时态there be结构的构成：
一般现在时：there is/are
一般过去式：there was/were
一般将来时：there will be
过去将来时：there would be
现在完成时：there have/has been
将来完成时：there will have been

过去完成时：there had been
过去将来完成时：there would have been
But there was more to me after reading that book than before. （过去式）
但是读过这本书后我比以前有了更多收获。
If it were not for the vapour in the air, there would be no dew. （过去将来时）
如果空气中没有水气，就没有露水。
There is another job to do. （一般现在时）
还有一项工作要做。
Tess then remembered that there would have been time for this. （过去将来完成时）
这时苔丝才想起来，是有时间把信送到这儿。
Soon, though, there will be no more of these miracles. （一般将来时）
There had been sudden ominous showers in the night, with rain like handfuls
of miracles on the roof.（过去完成时）
夜里突然下了几场预示不祥的阵雨，一把把碎石般的雨点被抛到屋顶上。
很快，然而，将不会有更多这样的奇迹了。

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