在英文中,助動詞(Auxiliary Verbs) 扮演極為重要的角色。它們能幫助我們表達語氣、時間、動作狀態或說話者的態度。常見的助動詞分為兩類:
- 基本助動詞(Primary Auxiliaries):如 do / be / have
- 情態助動詞(Modal Verbs):如 can / may / must / should 等
✅ 助動詞的基本語法規則
- 助動詞 + 原形動詞(不加 s / ing / ed)
- ✅ She can swim.
- ❌ She can swims.
- 否定形式:助動詞 + not
- He cannot come.
- You should not worry.
- 疑問句:助動詞放句首
- Do you like coffee?
- Can she drive?
🔹 一、基本助動詞 Do / Does / Did
📌 用法
do
、does
、did
是用來幫助構成否定句與疑問句的助動詞。它本身沒有意義,重點是讓主要動詞正確出現在句中。✅ 否定句
- I do not like onions.(我不喜歡洋蔥。)
- She does not understand.(她不懂。)
- We did not see him yesterday.(我們昨天沒看到他。)
✅ 疑問句
- Do you speak English?(你會說英文嗎?)
- Does he live in Taipei?(他住在台北嗎?)
- Did they finish the job?(他們完成工作了嗎?)
✅ 強調語氣
有時候 do
也可用來強調肯定語氣:
- I do like your idea!(我真的喜歡你的想法!)
- He did say that.(他真的有說那句話。)
🔹 二、情態助動詞 Modal Verbs
這類助動詞用來表達能力、請求、建議、可能性、義務等語氣,搭配原形動詞使用:
1. Can / Could
- 表示能力:She can play the piano.
- 請求:Could you help me?
2. May / Might
- 允許:You may go now.
- 可能性:It might rain later.
3. Shall / Should
- 建議:You should sleep earlier.
- 提議:Shall we dance?
4. Will / Would
- 未來:I will call you later.
- 假設語氣:If I were rich, I would travel the world.
5. Must
- 義務:You must wear a helmet.
- 推論:She must be tired.
🎯 小測驗練習
填入正確的助動詞(do/does/did/can/should 等):
- He ___ not want to go.
- ___ you like coffee?
- You ___ try this – it's great!
- I ___ believe she said that!
- She ___ go to work every day.
解答在最下方
🧠 小技巧:助動詞的記憶建議
- Do/Does/Did:用來構成「一般句」的否定與疑問,基本操作組合拳!
- Modal Verbs(can/will/must...):幫你加上「感覺」、「態度」或「義務性」
- 看到「助動詞 + 原形動詞」這個模式,就是對的!
🧾 總結

✔️ 測驗解答:
- does
- Do
- should
- do
- must / does(根據語氣而定)