may

may — 情態動詞

1. shows that something has a chance of happening or being true, though you are not

1.情態動詞A2
釋義

可能

表示某事有可能發生

shows that something has a chance of happening or being true, though you are not completely sure about it; you present your statement as a possibility rather than a certainty.

例句

The train from Glasgow may arrive late because of the heavy snow on the tracks.

從格拉斯哥出發的火車可能會因為軌道上積雪過厚而誤點。

may + base verb: suggesting a real possibility

Sofia may not come to the party tonight since she has a bad cold.

Sofia 得了重感冒,今晚可能不會來派對了。

negative form: may not

同義詞
  • might

    suggests a lower probability or more tentative possibility than may

  • could

    suggests a general or theoretical possibility, often less formal

  • can

    suggests a general truth or theoretical possibility; less tentative than may

反義詞
  • cannot

    expresses impossibility rather than possibility

  • may not

    denies the possibility: it is possible that something will NOT happen

文法句型

may + base verb

may + be

may + not + base verb

may well + base verb

用法筆記

Compare with might (which suggests less certainty) and can (which suggests a general truth or ability). In everyday speech, many British speakers prefer might for possibility, while may sounds slightly more formal or written-register.

常見錯誤

She may comes to the meeting.
She may come to the meeting.
💡After the modal may, always use the base form of the main verb, never the third-person singular -s form.
It may to rain later.
It may rain later.
💡Do not add to after may; the modal is followed directly by the base verb.

2. used to politely ask whether you are allowed to do something, or to tell someone

2.情態動詞B1
釋義

可以

請求或給予許可

used to politely ask whether you are allowed to do something, or to tell someone that they have permission to do it — for example, a child asking a teacher May I get a drink of water? or a sign saying visitors may park in the lot behind the building.

例句

May I borrow your pen for a moment to write down this address?

我可以借你的筆寫下這個地址嗎?

May I + verb: polite request for permission

You may leave the classroom once you have finished the exam.

你考完試就可以離開教室了。

You may + verb: granting permission

同義詞
  • can

    less formal and more common in everyday spoken requests

  • could

    more hesitant or tentative than may, common in polite British requests

  • be allowed to

    explicit rather than modal; useful when tense or non-modal structure is needed

反義詞
  • may not

    refuses or denies permission

  • must not

    stronger refusal: expresses prohibition rather than lack of permission

  • cannot

    common informal way to refuse permission

文法句型

May + subject + base verb?

You may + base verb

subject + may not + base verb

用法筆記

More formal than can for permission. In casual everyday conversation, native speakers typically use can (Can I borrow your pen?). May I is considered the most polite and correct choice in formal situations, with teachers, or with strangers.

常見錯誤

May I to go to the bathroom?
May I go to the bathroom?
💡Do not add to after may; the main verb follows directly.
You may can leave early.
You may leave early.
💡Do not combine two modals. May already expresses permission; can is unnecessary.

3. expresses a strong hope or desire that something good will happen for someone —

3.情態動詞B2
釋義

祝願

表達對他人的祝福或期望

expresses a strong hope or desire that something good will happen for someone — used in fixed blessing-like expressions such as May you have a long and happy life together or May peace be with you.

例句

May your wedding day be filled with joy and surrounded by the people you love.

願你的婚禮充滿歡樂,並被你所愛的人圍繞。

May + subject + base verb: blessing formula

The old woman smiled and said, 'May your journey home be safe.'

那位老婦人微笑著說:「願你一路平安。」

同義詞
  • hope

    more common in everyday English; follows normal sentence order (I hope you...)

  • let

    in phrases like let there be, let peace reign; similar wishful force but different grammar

文法句型

May + subject + base verb!

用法筆記

This sense follows a distinct inversion pattern: May + subject + base verb — it does NOT follow the usual subject + auxiliary order. It is mainly used in formal blessings, toasts, ceremonial wishes, and some fixed expressions. In everyday speech, I hope is far more common.

常見錯誤

You may have a good day.' (when meaning a wish)
May you have a good day.
💡The wish sense requires inversion: May + subject + verb. Without inversion, the sentence reads as permission or possibility, not a wish.

may — 名詞