have been studying过去进行?用法?have been studying是过去进行吗它意思是什么?过去进行的用法?

have been studying过去进行?用法?have been studying是过去进行吗它意思是什么?过去进行的用法? 英语have been studying过去进行?用法?have been studying是过去进行吗它意思是什么?过去进行的用法? How long have you been studying? i have been studying history in china 英语翻译1.please tell me how long you have studied English.2.please let me know have been studying.可是没有从句是一般过去时态 为什么呢? HOW long have you been studying english 怎么回答 I have been studying history in china 如何翻译 i have been studying history in china 的语法要点 have been+过去分词、与have+过去分词的区别 We've been studying English since five years ago(提问）（）（）have（）been studying English? have been的时态.I've been (studying) English for 3years.为什么用studying而不是to study have been＋过去分词造句 have/has been+过去分词是什么时态? have been的been是分词还是过去 have+过去分词和have been+过去分词的区别请问 have been+过去分词是什么时态. where have you been studying?-I have been in a high school —— headmaster is a womenwhere have you been studying?-I have been in a high school — headmaster is a women用that还是whose We have been studying and living together for over four years.这话对么?studying 要不要改成learning 还有 study的进行时是studying还是studing have been doing 和have +动词过去分词的差别.