be動詞的三個現在式
注意⚠：
- 動詞分二種，be動詞和一般動詞（簡稱Verb）。
- be動詞的原始意思為「是」。
- be動詞的現在式有三個，各有各的主人，不要弄錯囉！請看表格：
| be動詞 | am | is | are |
|---|---|---|---|
| 主人是誰？（用什麼主詞呢？） | I（我）專用 | 1. He（他） | 1. you（你、你們） |
| 2. she（她） | 2. we（我們） | ||
| 3. it（它） | 3. they（他們） | ||
| 4. 第三人稱單數的主詞（我們兩個人講話時，提到的第三個人、動物、東西或事情，只有一個的時候） | 4. 主詞是複數時 | ||
| 例句 | I am happy. | 1. He is happy. | 1. You are happy. |
| 2. She is happy. | 2. We are happy. | ||
| 3. It is good. | 3. They are happy. | ||
| 4. My father is happy. | 4. He and I are happy. | ||
| My dog is happy. | The studens are happy. |
be動詞的問句及否定句
注意⚠：
- be動詞的現在式有3個，即am、is、are
- be動詞可以造成問句和否定句，不用請別人幫忙，自己辦得到。
- 只要把be動詞挪到句首，就是「嗎」問句了。因為中文解釋通常加了「嗎」在句尾。又叫YesNo問句，因為通常用yes或no先回答。
- 否定句就是在be動詞的後面加上not（不）即可。
| be動詞 | am | is | are |
|---|---|---|---|
| 肯定句 | I am happy.(我是高興的。) | 1. He is happy. | 1. You are happy. |
| 2. She is happy. | 2. We are happy. | ||
| 3. It is good. | 3. They are happy. | ||
| 4. My father is happy. | 4. He and I are happy. | ||
| 5. My teacher is happy. | 5. The students are happy. | ||
| 疑問句 | Am I happy?(我高興嗎？) | 1. Is he happy? 他高興嗎？ | 1. Are you happy? 你高興嗎？ |
| 2. Is she happy? 她高興嗎？ | 2. Are we happy? | ||
| 3. Is it good? 它很棒嗎？ | 3. Are they happy? | ||
| 4. Is my father happy? 我爸爸高興嗎？ | 4. Are he and I happy? | ||
| 5. Is my teacher happy? 我的老師高興嗎？ | 5. Are the students happy? | ||
| 否定句 | I am not happy.(我不高興。) | 1. He is not happy. 他不高興。 | 1. You are not happy. 你不高興。 |
| 2. She is not happy. | 2. We are not happy. | ||
| 3. It is not good. | 3. They are not happy. | ||
| 4. My father is not happy. | 4. He and I are not happy. | ||
| 5. My teacher is not happy. | 5 . The students are not happy. |