一般過去將來時(shí)常用于描述過去某時(shí)間里你對(duì)于未來的想法。猜想正確與否并無多大關(guān)系。基本形式為would+動(dòng)詞原形和was/were going to+動(dòng)詞原形。之前我們?cè)斀饬艘话氵^去將來時(shí)的否定和疑問用法，現(xiàn)在來看看它的被動(dòng)用法。

基本形式：（1）would + be + 動(dòng)詞的過去分詞（2）was / were +going to be + 動(dòng)詞的過去分詞

我們通過例句來感受下被動(dòng)態(tài)：
（1）
I knew John would finish the work by 5:00 PM. (Active) 我知道約翰會(huì)在5點(diǎn)前結(jié)束工作。（主動(dòng)）
I knew the work would be finished by 5:00 PM. (Passive) 我知道工作會(huì)結(jié)束于5點(diǎn)之前。（被動(dòng)）

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

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

（4）
I knew that my sister would buy a house. (Active) 我知道我姐姐要買房了。（主動(dòng)）
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(dòng)）

如果同學(xué)們對(duì)于現(xiàn)在時(shí)的主動(dòng)被動(dòng)態(tài)了解的很清楚的話，一般過去將來時(shí)的被動(dòng)態(tài)應(yīng)該可以很輕松的拿下吧。