I’ve been...的ve是什么?这里的been去掉和不去掉有什么区别

i've been ...是什么时态? I’ve been...的ve是什么?这里的been去掉和不去掉有什么区别 i've been here before 这句是什么语法啊? I've been expecting I've been cryin Ive been to I've been filming. 英语翻译i've been这是什么时态?be 在这是怎么用的? I've的展开式是什么? I've 的原形是什么? I've 的全称是什么? I've got和I've的区别是什么 哪首歌的歌词刚开始时是lately I've been,I've been losing sleep I've been to me I've been waiting for i've been referred to I've Been Waiting 歌词 I'Ve Been Here 歌词