couldn't have done 有 不可能的意思吗?问题二它和cant have done的区别
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couldn't have done 有 不可能的意思吗?问题二它和cant have done的区别
couldn't have done和can't have done都表示不可能,对过去情况推测
比如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.He can't be very smart
couldn't 不行.
couldn't have done可以用于 和过去事实相反的虚拟语气,can't have done 不行
比如:If you hadn't gone to the party,you couldn't have met your future wife.
如果你没去晚会,你不可能遇到你未来的妻子.
喜欢的话,
比如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.He can't be very smart
couldn't 不行.
couldn't have done可以用于 和过去事实相反的虚拟语气,can't have done 不行
比如:If you hadn't gone to the party,you couldn't have met your future wife.
如果你没去晚会,你不可能遇到你未来的妻子.
喜欢的话,
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