之前有简单地讲过了被动语态，这个章节二番解析不同时态和一些细枝末节。

我们用主动动词来表达主语的动作：

Somebody built this house in 1930. (主语somebody，主动动词built)

我们用被动动词来表达主语的变化：

This house was built in 1930.(主语this house，被动动词was built)

如果我们想说“谁或者什么导致了这个行为”，使用“by”进行衔接。

This house was built by my father.

Two hundred people are employed by the company.

根据上面的例子也能看出，被动语态的结构可以是：

be(is/was/have been...)+动词过去分词

最常使用的被动语态时态分别有：

一般现在时被动语态： am/is/are+动词过去分词

I'm often invited to party.

我经常被邀请去派对。

This room is cleaned everyday.

这间房天天有打扫。

Many accidents are caused by dangerous driving.

许多交通事故都是因为危险驾驶造成的。

一般过去时被动语态：was/were+动词过去分词

How much money was stolen?

多少钱被偷了？

We were woken up by a loud noise last night.

我们昨晚被一声巨响吵醒了。

现在完成时被动语态：have/has been+动词过去分词

The room looks nice. It has been cleaned.

这间房看起来很棒，是已经被清洁过了的。

I have been bitten by a dog.

我曾经被狗咬过。

过去完成时被动语态：had been+动词过去分词

The vegetalbes had been cooked for too long, it tasted terrible.

这些蔬菜被煮得太久了，尝起来很不好。

The car hadn't been used very much.

这辆车没有经常被使用。

现在进行时被动语态：am/is/are being+动词过去分词

There's somebody walking behind us, I think we are being followed.

有人跟在我们后面，我想我们被跟踪了。

The room is being cleaned at the moment.

这间房间正在被打扫。

过去进行时被动语态：was/were being+动词过去分词

The room was being cleaned at 8:00 this morning.

这间房间早上8点的时候有人在清洁。

出处：头条号 @Marco学英语