一个肯定,一个否定,没有联系
must have been和can't have been和现在完成时有没有联系啊
1个回答
相关问题
-
They can't have been doing thier homework.have been 是现在完成时,但
-
有没有have doing这个说法?我们都知道现在完成时有have done 和have been done 两种用法,
-
怎么掌握现在完成时?有三个短语我想搞清楚就是have been to have been in 和have gone t
-
完成进行时（have+been+现在分词） 完成时被动语态（have+been+过去分词） 现在完成时（have+过去分
-
在现在完成时中have you been in与have you been to有什么区别
-
现在完成时和过去完成时He had been in the habit of smoking和He have been
-
have been to 和 have been in 和have been on有什么区别
-
关于现在完成时have been
-
can’t have been与couldn’t have been的区别?
-
现在完成时 has和have后跟什么？has/have been这个又是什么？