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can have done
情态动词+
have
done
的用法
答:
3、“
can
+
have
+
done
”表示对过去行为的怀疑,用于疑问句,译成“可能做过??吗?”There is no light in the room.
Can
they have gone out?屋里没有灯,他们可能出去了吗?4、“could+have+done”是虚拟语气,表示对过去事情的假设,意思是本来能够做某事而没有做。5、He could have passed the...
情态动词+
have
done
的用法
答:
3、“
can
+
have
+
done
”表示对过去行为的怀疑,用于疑问句,译成“可能做过……吗?”There is no light in the room.
Can
they have gone out?屋里没有灯,他们可能出去了吗?4、“could+have+done”是虚拟语气,表示对过去事情的假设,意思是本来能够做某事而没有做。5、He could have passed ...
情态动词加
have
+
done
的用法
答:
2. 肯定、否定、疑问句中表推测(可能性):Don't worry. They could
have
arrived home. / The guests would have arrived by that time.(对过去的推测,*would一般用于肯定句)
can
have
done
否定、疑问中表推测:He can't have slept with the noise. (把握性极大的推测)
Can
he have ...
can
't
have
done
和couldn‘t have done 的区别
答:
couldn't
have
done
和
can
't have done都表示不可能,是对过去情况的推测。例句:he can't / couldn't have worked out the problem.他不可能解决了这个难题。can't 也可以用于对现在情况推测,couldn't have done可以用 和过去事实相反的虚拟语气。例如:if you hadn't gone to the party,you c...
can
't
have
done
和couldn‘t have done 的区别
答:
从释义,用法,使用环境,形象和影响范围五个维度分析
can
't
have
done
和couldn‘t have done的区别,详细内容如下。1. 释义区别:- "can't have done"的字面意思是“不可能已经做过某事”,它表示主观上持有不可能或不太可能某种行为或事件已经发生的观点。- "couldn't have done"的字面意思是“...
can
't
have
done
和could't have done的用法有什么区别?
答:
首先我们来看下
can
't
have
done
和couldn't have done的大致意思:can't have done:词性为短语,can't(can not):不能;have:已经(助动词);done(do的过去分词):做过 couldn't have done:词性为短语,couldn't(could not):不能;have:已经(助动词);done(do的过去分词):做过...
can
't
have
done
和couldn't have done的区别?
答:
首先我们来看下
can
't
have
done
和couldn't have done的大致意思:can't have done:词性为短语,can't(can not):不能;have:已经(助动词);done(do的过去分词):做过 couldn't have done:词性为短语,couldn't(could not):不能;have:已经(助动词);done(do的过去分词):做过...
can
't
have
done
是什么意思?
答:
首先我们来看下
can
't
have
done
和couldn't have done的大致意思:can't have done:词性为短语,can't(can not):不能;have:已经(助动词);done(do的过去分词):做过 couldn't have done:词性为短语,couldn't(could not):不能;have:已经(助动词);done(do的过去分词):做过...
can
't
have
been和can' have
done
有什么区别
答:
can
t
have
done
表否定推断,推测肯定没做。 The measurement couldn t have been wrong. 测量不可能出错了。 He can t have been to that town. 他根本不可能去过那座城市。 He can't have taken it home. 他不 “can’t have done”表否定推断,推测肯定没做。<><><> The measurement...
can
't
have
done
是什么意思?
答:
can
't
have
done
(不可能做过)是must have done(一定做过)的否定形式。couldn't have done(可能没做过)是may have done(有可能做过)的否定形式。一般认为can't have done有80%以上的把握.而couldn't have done则委婉的多,只有50%左右的把握.must do /can't do一定,肯定80%把握。may/...
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