帮帮忙 T.T

chloeeolhc

had been
has been
has had
have had
这些要怎样用？
每次写作文动不动要用哪一个
可以的话请列句子出来

kaiszheng

had been - He had been studied for 3 years in university.  已經完成了，不再讀書
has been - He has been studying in university for 3 years. 讀了3年，現在還在繼續當中
has had - He has had a sport car. 曾經有跑車
have had - They have had a very luxury car.    曾經有豪華的車
不知道對不對哈哈