基本形式:(1)would + be + 動詞的過去分詞(2)was / were +going to be + 動詞的過去分詞。eg. I knew the work would be finished by 5:00 PM。

我們通過例句來感受下被動態:
(1)
I knew John would finish the work by 5:00 PM. (Active) 我知道約翰會在5點前結束工作。(主動)
北京体彩网 I knew the work would be finished by 5:00 PM. (Passive) 我知道工作會結束于5點之前。(被動)

(2)
I thought Sally was going to make a beautiful dinner. (Active) 我想薩里會去做一頓豐盛的晚餐。(主動)
I thought a beautiful dinner was going to be made by Sally. (Passive) 我想一頓豐盛的晚餐會出自薩里之手。(被動)

(3)
I believed that Jack was going to write a letter to Tom. (Active) 我相信杰克會給湯姆寫信的。(主動)
I believed that a letter was going to be written to Tom by Jack. (Passive) 我相信有封信會寫自杰克之手并被交給湯姆。(被動)

(4)
I knew that my sister would buy a house. (Active) 我知道我姐姐要買房了。(主動)
北京体彩网 I knew that a house would be bought by my sister. (Passive) 我知道有一所房子要被我姐姐買下了。(被動)

?