这得看具体句子了
过去将来一般时的被动语态的
主语是液升第一人称时用should be加及物动词的过去分词构成；
主语是第二、三人称时用would be加及物动词的过去分词构成。
例如：
He said that something would be needed to finish the task.
他说要完成这项任务，需闹羡老要某种条件。
It was said that they would be selected by lottery.
据说他们将抽签选出。
希望能帮到你O(∩派祥_∩)O
