[질문] have p.p, have been p.p, had p.p, had been p.p 의 해석차이!!

have p.p:상태의지속(~했었다)/had p.p:그 상태가과거의한시점에서종료됨(~했었었다)/have been p.p:수동.(~당했었다)/had been p.p:(~당한적이과거에있었다)