"being" 是英语中一个重要的语法现象，称为被动语态。在被动语态中，主语是动作的承受者，而动作的发出者则由介词 "by" 引出。在被动语态中，动词的形式需要改为分词形式，根据时态的不同，有以下几种情况：
1. 一般现在时：am/is/are + 动词的现在分词
2. 一般过去时：was/were + 动词的过去分词
3. 一般将来时：will be + 动词的现在分词
4. 过去将来时：would be + 动词的现在分词
5. 现在进行时：am/is/are + being + 动词的现在分词
6. 过去进行时：was/were + being + 动词的过去分词
7. 将来进行时：will be + being + 动词的现在分词
8. 过去将来进行时：would be + being + 动词的现在分词
以下是一些例子：
1. 一般现在时：The book is being written by John.
2. 一般过去时：The book was written by John.
3. 一般将来时：The book will be written by John.
4. 过去将来时：The book would be written by John.
5. 现在进行时：The book is being written by John.
6. 过去进行时：The book was being written by John.
7. 将来进行时：The book will be being written by John.
8. 过去将来进行时：The book would be being written by John.
在使用被动语态时，需要注意根据上下文和句意选择合适的时态。
