1. be 動詞三句記住：I am · You are · He / She / It is
| 主語 | be 動詞 | 例句 |
|---|
| I | am | I am talkative. |
| You / We / They | are | You are cheerful. |
| He / She / It / 一個人 | is | He is bossy. |
否定：be + not → am not / is not (isn’t) / are not (aren’t) · 問句：把 be 搬去主語前面 → Am I…? / Is he…? / Are you…?
2. 一句句子有三件嘢，次序唔可以亂
| be 動詞句子 | 動作動詞句子 |
|---|
| 肯定句 Positive | He is kind. | He plays the piano. （he / she / it → 動詞 + s） |
| 否定句 Negative | He isn’t kind. | He doesn’t play the piano. （doesn’t + 原形） |
| 問句 Question | Is he kind? | Does he play the piano? |
睇一眼就分得出：句子有 am / is / are → 用 be 嘅做法；冇 be 但有動作 → 用 do / does 嘅做法。
3. 睇主語決定用邊個
- be 動詞：I am · You / We / They are · He / She / It is
- I / You / We / They / 兩個人以上（動作）→ do / don’t，動詞用原形（play）
- He / She / It / 一個人（動作）→ does / doesn’t，動詞用原形（play），但肯定句動詞要加 -s（plays）
4. 三句口訣
肯定句→主語 + be / 動詞(+s) …
否定句→主語 + am not / isn’t / aren’t / don’t / doesn’t …
問句→Am / Is / Are / Do / Does + 主語 … ?
5. 常見錯誤 ✗ → ✓
| ✗ 錯 | ✓ 對 | 為什麼 |
|---|
| You is cheerful. | You are cheerful. | You 配 are |
| I is talkative. | I am talkative. | I 一定配 am |
| He are bossy. | He is bossy. | He / She / It 配 is |
| You not are cheerful. | You are not cheerful. | not 放喺 be 後面 |
| Tom and James plays football. | Tom and James play football. | 兩個人（複數）→ 動詞用原形 |
| My sister swim. | My sister swims. | she → 動詞加 -s |
| Ken doesn’t dances. | Ken doesn’t dance. | doesn’t 後面用原形 |
| Do my sister swim? | Does my sister swim? | my sister = she → Does |
⌨️ 打法：㩒一吓空格就可以打字。否定句同問句嘅 am not / isn’t / aren’t / don’t / doesn’t / Do / Does 要自己打。打完**按 Check** 對答案。
✅ 答案會自動接受 isn’t 同 is not、don’t play 同 do not play；大細寫、句尾嘅 . ? 同撇號都唔計。