come back的现在完成时

come back的现在完成时 在现在完成时中,return和come back有什么区别? 用现在完成时造一个句子have come back,supermarket I have just come back.是现在完成时吗?如果是,那come为什么不用过去分词? He has just come back.现在完成时.He has just come back.为什么不是用came?has/have+动词过去式? 初三现在完成时的小小问题~come的延续性动词是什么He has____(come)back from HK for a week不是说只有come here 有延续性吗单独一个come是什么~ come back和go back的区别 come back,give back 的翻译 come back和 get back的区别 be back与come back的区别 come back 与get back 的区别 get back和come back的区别? come back 的延续性动词 come back to 的同义词 go back 、come back、get back的区别 be back ,come back和go back 的用法区别. come back 和 be back、get back的区别是什么? 歌词里有 come back back home come back back 的