用can't have been造句!

用can't have been造句! 用must have been/done或can*t have been/done 改写句子 can't help doing 造句can't help doing 忍不住做某事 跟must be 和must have been造句?比如 他昨晚听到这个笑话肯定忍不住笑了 用英语怎么翻译 He can't have been.He must have been.不是说单三用has吗?这里怎么用的have? 用must,can,can't,needn't,has to,have to,had to,will,造句 英语翻译A.can't have been B.mustn't have been C.shouldn't have been D.wouldn't have been can’t have been与couldn’t have been的区别? 英语举例子!用下面条件造句most+动原can't+动原正在进行时may+be+v-ingmight+be+v-i过去时态could+have+过去分词could+have+been+过去分词 英语举例子!用下面条件造句most+动原can't+动原正在进行时may+be+v-ingmight+be+v-ing过去时态could+have+过去分词could+have+been+过去分词 用英语have't造句 can't have been和must have been每一个的用法 She can't have been Danish. and She must have been Swedish. be,must be,can't have been,must have been吗 must have been和can't have been和现在完成时有没有联系啊 can't have been和can' have done有什么区别或者must have been和must hane done;may have been和may have done you can have been 用prefer,have done,have been doing分别造句 he can't haue been a dcntist.he must have been a doctor.翻译下