过去现在时 have /has been doing和have/ has +过去分词的区别
过去现在时 have /has been doing和have/ has +过去分词的区别
have/has+been doing 与has/have+过去分词的区别
现在完成时进行时“have/has been后是不是+doing?" 现在分词是什么意思?过去分词又是什么?
have been doing和 have +动词过去分词 的区别.
have been doing sth had 加过去分词 have has 加过去分词 分别是什么时态?求什么区别?最
have+过去分词和have been+过去分词的区别
be+过去分词与have/has+过去分词的区别
have/has+过去分词与jave/has been+过去分词有什么区别
have/has been+过去分词是什么时态?
have been doing 和have +动词过去分词的差别.
have done 现在完成时 和 过去时有什麼区别啊 顺便说下have/has been doing 现在完成进行时
have been+过去分词、与have+过去分词的区别