"i have been for a long time"中,"have" 为什么不用"had"?"been"不代表已经结束了么?

I have been looking for a man. I know personally have been waitting for me,so l will take a l have been looking for someone for a long time i have been here ( )a year.A,since B,for I have been loving you for a long time I'm already eating and have been for a long How long have you been in hongkong?l have been here for a week.have you visited Disneyland? What have l been living for I have learned english for five yeats与l have been learning english for five years的语法区别. That‘s e__ what I need!I have been looking for it for a long time For all the days that l have been lonelyFor all the days that i have been lonely,for all the times that l have felt blue ,for all the times ineeded a shoulder to learn on .Thanks for being there as a friend so true.Happy Tanksging.You are the joy of 29.I ______ home for a week.A.have returned B.have been back C.returned l have been a student here （for a year）.(划线部分提问） _____,l should not have late for the meeting.A.Had l been informed earlierB.Were l informed earlier I have been a person . I have been waiting for you I have been working for two days. I have been ()teapots for fifteen years