before引导的从句谓语动词到底用什么样的时态
- 培训职业
- 2025-05-06 10:47:59
before 所引导的时间状语从句 所表示的动作 发生在主句动作之后 如果强调主句的动作发生在前 主句谓语 要用过去完成时 ;
he had studied english for six years before she went to college.
before 引导的从句用一般过去时 如不强调动作的先后 主句和从句 均用一般过去时 ;
如 she worked in shsnghai before she came here.
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