1.would / should + be + 动词的过去分词
2.was / were +going to be + 动词的过去分词.
I knew John would finish the work by 5:00 PM. (Active) 我知道约翰会在5点前结束工作。（主动）
I knew the work would be finished by 5:00 PM. (Passive) 我知道工作会结束于5点之前。（被动）
I thought Sally was going to make a beautiful dinner. (Active) 我想萨里会去做一顿丰盛的晚餐。（主动）
I thought a beautiful dinner was going to be made by Sally. (Passive) 我想一顿丰盛的晚餐会出自萨里之手。（被动）
I believed that Jack was going to write a letter to Tom. (Active) 我相信杰克会给汤姆写信的。（主动）
I believed that a letter was going to be written to Tom by Jack. (Passive) 我相信有封信会写自杰克之手并被交给汤姆。（被动）