present perfect tense咩情況會加個been..

一般的 present perfect tense should be has/have + p.p.
but if u add "been" into it, it's usually in passive voice被動句
For example: I have selected Peter to be the monitor（我選了Peter做班長）= Peter has been selected by me as the class monitor（Peter被我選了做班長）, 兩句句子一樣意思，只不過前面用active voice主動句，後面個句用passive voice
好似你細個學中文，老師叫你將個「被」字加入句子度，保持原有意思
如果你驚錯，咪同普通 active voice，it's better to use something you're similar rather than making mistakes!

通常是被動形式, 例如：
That apple has been eaten by me. (那個蘋果已被我吃了。)