[질문] 수동태 현재형과 과거형 의미랑 해석 쉽게이해하는법

수동태현재형 am/are/is+p.p:The book is read by me.그책은나에의해읽어진다// 수동태과거형 was/were+p.p : The book was read by me.그책은나에의해읽어졌다