It is some time+ since引导的从句是什么时态?

如题所述

    It is some time(一段时间) + since引导的时间状语从句。


时态的话,采用一般过去时。


例:

It is five years since I left here.

我离开这里有五年了.

(2)附加说明,如果is改为was,那后面是完成时态


It was +一段时间+ since+过去完成时


例:

It was ten years since I had enjoyed a good drink.

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