英语时态用法have +动词过去式 与have been +动名词的区别

英语时态用法have +动词过去式 与have been +动名词的区别 have been加动词过去啦式 与have 加动词过去式的区别 have been doing与 have done的用法区别 have 加动词过去式与动词过去式有什么区别 have/had+动词过去式与Did的区别是什么? have been done与be done的区别和用法 请问was 与have been用法的区别 have been的时态. have been 的过去式? 在英语中现在完成时有时用have加动词过去分词,有时用have been加动词过去分词,这两种用法的区别是什么? Have gone与Have been的区别 have been 与have do的区别