下面是一句固定的简单句，通过时态的转换，展示各种时态的动词形式及其例句：
左边为动词形式，右边为 be 动词 的形式，包括语法结构和例句。
| 动词形式 | be 动词形式 |
|---|---|
| 一般现在时 | |
| 主语 + 动词原形 | 主语 + am/is/are + 表语 |
| I read a book.（我读一本书。） | She is a teacher.（她是一名老师。） |
| be 动词：is | |
| 一般过去时 | |
| 主语 + 动词过去式 | 主语 + was/were + 表语 |
| I read a book yesterday.（我昨天读了一本书。） | She was a teacher.（她曾是一名老师。） |
| be 动词：was | |
| 一般将来时 | |
| 主语 + will + 动词原形 | 主语 + will be + 表语 |
| I will read a book tomorrow.（我明天会读一本书。） | She will be a teacher.（她将成为一名老师。） |
| be 动词：will be | |
| 现在进行时 | |
| 主语 + am/is/are + 动词现在分词 | 主语 + am/is/are + being + 表语 |
| I am reading a book.（我正在读一本书。） | She is being a teacher.（她正在扮演一名老师的角色。） |
| be 动词：is being | |
| 过去进行时 | |
| 主语 + was/were + 动词现在分词 | 主语 + was/were + being + 表语 |
| I was reading a book yesterday.（我昨天正在读一本书。） | She was being a teacher.（她当时正在扮演一名老师的角色。） |
| be 动词：was being | |
| 将来进行时 | |
| 主语 + will be + 动词现在分词 | 主语 + will be + being + 表语 |
| I will be reading a book tomorrow.（我明天会正在读一本书。） | She will be being a teacher.（她将会正在扮演一名老师的角色。） |
| be 动词：will be being | |
| 现在完成时 | |
| 主语 + have/has + 动词过去分词 | 主语 + have/has + been + 表语 |
| I have read a book.（我已经读过一本书。） | She has been a teacher.（她已经是一名老师了。） |
| be 动词：has been | |
| 过去完成时 | |
| 主语 + had + 动词过去分词 | 主语 + had + been + 表语 |
| I had read a book before you came.（在你来之前我已经读完了一本书。） | She had been a teacher.（她曾经是一名老师。） |
| be 动词：had been | |
| 将来完成时 | |
| 主语 + will have + 动词过去分词 | 主语 + will have + been + 表语 |
| I will have read a book by tomorrow.（到明天为止，我会读完一本书。） | She will have been a teacher.（她将会成为一名老师。） |
| be 动词：will have been | |
| 现在完成进行时 | |
| 主语 + have/has + been + 动词现在分词 | 主语 + have/has + been + being + 表语 |
| I have been reading a book for two hours.（我已经读了两小时书了。） | She has been being a teacher.（她一直在扮演一名老师的角色。） |
| be 动词：has been being | |
| 过去完成进行时 | |
| 主语 + had + been + 动词现在分词 | 主语 + had + been + being + 表语 |
| I had been reading a book for two hours before you arrived.（在你到来之前，我已经读了两小时的书。） | She had been being a teacher.（她当时一直在扮演一名老师的角色。） |
| be 动词：had been being | |
| 将来完成进行时 | |
| 主语 + will have been + 动词现在分词 | 主语 + will have been + being + 表语 |
| I will have been reading a book for two hours by the time you arrive.（到你来的时候，我将已经读了两小时的书。） | She will have been being a teacher.（她将一直在扮演一名老师的角色。） |
| be 动词：will have been being | |
| 过去将来时 | |
| 主语 + would + 动词原形 | 主语 + would be + 表语 |
| I would read a book if I had time.（如果我有时间，我会读一本书。） | She would be a teacher.（她本来会成为一名老师。） |
| be 动词：would be |