have been的时态.I've been (studying) English for 3years.为什么用studying而不是to study

i've been ...是什么时态? 英语翻译i've been这是什么时态?be 在这是怎么用的? have been的时态.I've been (studying) English for 3years.为什么用studying而不是to study 关于时态的问题have beenhave been 和have had been有什么区别?原句是这样的：I've heard has been good.有have也有has 有首歌的歌词是all my live I've been waiting for,请问HAVE BEEN+VING是什么时态?我只学过HAVE+VING是现在进行时,have+pp是现在完成时.如果have+be原型是什么时态呢?过去一直持续到现在吗 “have been 的用法及意思He has been ill for two days这句话中的have been不应该是完成时态的被动语态吗?为什么这句话的翻译是“他病了两天”?并没有体现出被动语态啊!还有,麻烦翻译一下“I‘ve be I have been sitting 的意思.,时态,相关句子-举例 have been 的用法All the movies that I've done have been very different and all the characters I've done have been very different.为什么要用have been.这样写对吗?直接换成 “be”例如：All the movies that I've done were very differe Hola if you feel that you've been down the same road 里面的 have been 什么时态? I've been working extra hard lately.什么时态? I have been to shanghai 什么时态 I've must have been blind.是否病句?I've must have been blind.两个have?该句出自Tonya Mitchell的Stay. 请问这句是英文什么时态i have been beijing .been 是什么意思,它的原形是什么呢. I ___ of Hongkong a lot,but I've never been there beforeA.hear B.heard C.have heard应该选择哪个时态啊? I have to i____ that i've been there 求翻I've been here since 1990请帮我翻一下,还有这是句什么时态的句子? 请帮我分析英语的一句话I see you've been doing your homework.怎么翻译,这里是什么时态. 一到初中的语法题,I ‘ve been sitting in front of the computer for an hour.I ‘ve been sitting能不能改成I have sit