It has been so long since we were all together. 好久我们没有在一起团聚了。(“在一起”的结束就是“没有在一起”)

注意：

如果要表示从句中的动作或状态延续至今，就应该用持续性动词的现在完成时，而不是用一般过去时。如：

I haven’t seen you since I have been back. 我回来后一直未见到你。

I haven’t had a good meal (ever) since I’ve been here. 我自从来到这里后还没吃过一顿好的。

I haven’t seen you since I have been back. 我回来后就一直没见到你。

He has never been to see me since I have been ill. 我生病以来他从未来看过我。

Nothing has happened here since you’ve been away. 自你离开后，这里没有发生什么事。

I have met him often since I have lived here. 自从我在这里住下之后，我常看见他。

I have learned a lot from him since I have known him. 自从我认识了他，我向他学到许多东西。

This is the first storm since you’ve been here. 自从你来到这里，这才是第一场暴风雨哩。

 

三、值得注意的特例

有个别时候(尤其是用于since I was a child, since we were young之类的表达)，持续性动词或状态动词的一般过去时也可以表示动作或状态持续到现在 (多半有ever修饰)。如：

I’ve known her ever since I was a child. 自孩提时代起我就已经认识她了。

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