关于情态动词的问题must have been doing 和must have done 请问 区别
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关于情态动词的问题
must have been doing 和must have done
请问 区别
must have been doing 和must have done
请问 区别
must have been doing 是对某人从过去某时一直延续到现在有可能继续的动作进行的肯定推测.
must have done是对某人过去的某种动作进行肯定的推测.
must have done是对某人过去的某种动作进行肯定的推测.
must have been与must have done的区别?
must have been doing与must have been done都表示推测,有什么区别呀?
情态动词的中文解释must have done和mustn't have doneneed have done和need
must have been done must have done
MUST have been done
must have/ must have been的区别
must have been done/must be done
情态动词have to与must的用法区别
关于 must have done.
must be done和 must have done区别
could/should/must/.加have done和have been done区别
have been doing have done 的用法和区别