被动语态的时态是由be动词的时态决定的，be 动词是什么时态，全句就是什么时态，be动词后面的过去分词不变。

• (1)被动语态的一般现在时结构:“ am/is/are+过去分词”

The river is polluted.这条河 被污染了。

You‘re wanted on the phone.有 你的电话。.

• (2)被动语态的一般过去时结构:“ was/were+过去分词”

When was the bridge completed?这 座桥是何时建成的?

Where were they made?它 们是哪里制造的?

• (3)被动语态的一般将来时结构:“ will+ be/shall+过去分词”和“be going to+be+过去分词”

The project is going to be done.这个项目很快就会完成。

She will be invited to the party.她将 被邀请参加此次聚会。

现在正在进行时的被动语态

定义：表示此时此刻某事正在被做.
例如：
The sport meeting is being held in our school.
我校正在举行运动会.
Another bridge is being built over the Yangtze River.
长江上正在修建另一座大桥.
2、构成：be + being+过去分词

）“be being done” 中的动词be应随主语作相应的变化.
2）将现在进行时的主动语态变为现在进行时的被动语态的关键是：把be doing变为be being done.
例1.The students are cleaning the classroom now.
→The classroom is being cleaned now.
现在学生们正在打扫教室.(are cleaning变为is being cleaned)
例2.The boy is counting some eggs.
→Some eggs are being counted.
那男孩正在数蛋.(is counting 变为 are being counted)

需要注意的用法有：
1、有些动词进行时的主动形式就可以表示被动的意思,常见的这些动词有: print, cook, fry, bake, burn, hang.
如：The house is burning. The meat is cooking.
2、在be + under / in/on +n. 的结构可以表示现在进行时的被动语态的含义。
The problem is under discussion now. = The problem is being discussed now.
3、与情态动词连用，表示对现在正在发生的被动行为的推测。
(1) John is not here .He must be being interviewed
(2) ---Do you know what Smith is doing?
---He is ill. He may be being examined by the doctor.
注意：助动词am/ is/ are和being缺一不可并且不可以颠倒顺序。

被动语态的时态

原文：https://www.cnblogs.com/MrFlySand/p/13951180.html