被动语态的结构主要由 助动词be和及物动词的过去分词组成。具体结构如下：

一般现在时

am/is/are + 过去分词

例句：This kind of car is made in China.

一般过去时

was/were + 过去分词

例句：The window was broken by a cat.

一般将来时

will/shall be + 过去分词

例句：They will be arriving soon.

现在完成时

have/has been + 过去分词

例句：The work has been finished.

现在进行时

am/is/are being + 过去分词

例句：The house is being cleaned.

过去完成时

had been + 过去分词

例句：She had already left when I arrived.

如果需要特别强调动作或行为的执行者，可以在句子后面添加“by”，形成“情态动词 + be + 过去分词”的结构。例如：

The book was written by a famous author.

希望这些信息对你有所帮助。