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英语完成时态中的标志词或短语有哪些

现在完成时标志词:

already(肯定), yet(否定,疑问), just, before, recently,still, lately,never,ever, never, twice, on several occasion,in the past few days/weeks/months/years,(up to)these few days/weeks/months/years, this morning/week/month/year, just, up to present, so far,up to now,till now,since+时间

格式:have done

过去完成时:

上面的词+yesterday,last等

格式:had done

将来完成时:

表示某事继续到将来某一时为止一直有的状态。

格式:will have done、will have been done

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