被动语态的结构主要由两部分组成: 助动词be和 及物动词的过去分词。根据时态的不同,助动词be会相应地变化,而及物动词的过去分词则保持不变。
一般现在时
结构:am/is/are + 过去分词
例句:The book is written by a famous author.
一般过去时
结构:was/were + 过去分词
例句:The letter was sent yesterday.
一般将来时
结构:will be + 过去分词
例句:The meeting will be held tomorrow.
现在进行时
结构:am/is/are + being + 过去分词
例句:The road is being repaired.
现在完成时
结构:have/has been + 过去分词
例句:The work has been finished.
过去进行时
结构:was/were being + 过去分词
例句:She was reading a book when I called her.
过去完成时
结构:had been + 过去分词
例句:They had already left when we arrived.
现在完成进行时
结构:have/has been being + 过去分词
例句:They have been working on the project for months.
过去完成进行时
结构:had been being + 过去分词
例句:They had been working on the project all night.
将来完成时
结构:will have been + 过去分词
例句:By next year, they will have finished the building.
将来进行时
结构:will be being + 过去分词
例句:This time next week, I will be lying on the beach.
通过这些结构,被动语态能够清晰地表达出主语是动作的承受者,而不是执行者,从而使句子的意思更加明确。