• 所有问题

    • must be done和 must havebeen done

    must have done 和must have been 的区别
    都是对过去的猜测,二者的区别是什么?

    举报该问题
    推荐答案   2020-03-19
    其实就是be动词与do动词的区别,该用哪个与must无关；你可以考虑现在完成时、一般现在时、一般过去时该用哪个,照此办理
    It must have rained last night.昨晚肯定下过雨.
    You must have been tired after all this work.
    温馨提示：答案为网友推荐，仅供参考
    相似回答
    must be done和 must havebeen done答：其实就是be动词与do动词的区别,该用哪个与must无关；你可以考虑现在完成时、一般现在时、一般过去时该用哪个,照此办理 It must have rained last night.昨晚肯定下过雨.You must have been tired after all this work.
    用must be done 和must be doing 造句答：you must have completed the job!你一定已经做完了工作了吧？You must be doing the job!你一定还在做那个工作吧
    大家正在搜
    should have donemust been donemust 和have tocouldnothavedonemust have done否定must have done例句must have done用法there must havemight have done