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

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/16 03:30:42

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?最好有例句、、

have been doing sth是现在完成进行时,指从现在看来已经完成并继续进行的动作,had加过去分词,是过去完成时,指在过去看来已经完成的动作,have、has加过去分词是现在完成时,指从现在看来已经完成的动作…

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/has been+过去分词是什么时态? have been 加动词的过去分词是什么时态 have been doing sth=have 直接加动词过去分词吗? have been +过去分词是什么时态? 过去现在时 have /has been doing和have/ has +过去分词的区别 have been +过去分词,和had been+过去分词,有什么区别? 英语have+过去分词,had+过去分词.区别是什么, have/has+过去分词与jave/has been+过去分词有什么区别 had+过去式 have/has+过去分词有什么区别,都是什么时态? had+过去分词与have+过去分词有什么区别? have+过去分词和 had +过去分词有什么区别

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