句型

1. has/have + been + p.p.→現在完成式被動

2. Had + been + p.p.→過去完成式被動

3. shall/will + have + been + p.p.→未來完成式被動

例句

His homework has been done. (他的家庭作業已經做好了。)

The room had been cleaned when I arrived.(當我到達時，房間已經清理好了。)

Before you come back, the building will have been finished. (在你回來之前，這棟建築物將已經蓋好了。)

 觀念

授與動詞(如give，lend，show，tell，teach，write…)有「直接」與「間接」兩個受詞，可改成兩種被動語態。

例句

He gave me a book. (他給我一本書。)

= I was given a book by him. = A book was given (to) me by him.

Mr. Chen teaches us English. (陳老師教我們英文。)

= We are taught English by Mr. Chen. = English is taught (to) us by Mr. Chen.