A2 Grammar: Expressing Possibility with May and Might — A2 English grammar lesson by Langcom

A2 Grammar: Expressing Possibility with May and Might

ラウル・マグイニャ

Langcom 創設者 | ケンブリッジおよびSIELE試験の試験官

9月 10, 2026

A2✏️ 文法⏱️ 読了時間:5分📅 Updated 9月 2026
May そして might are modal verbs we use to talk about things that are possible in the present or future. They show that we are not 100% sure something will happen or is true. Think of them like saying “perhaps” or “it’s possible.” For example, if you say It may rain tomorrow, it means there is a possibility of rain, but it’s not definite. Similarly, She might be busy now means it’s possible she is busy, but we don’t know for sure. We always use the base form of the verb after may または might, 例えば may go または might see. These verbs are very useful for expressing uncertainty in everyday conversations and in exams like the A2 Key. Mastering may そして might will help you communicate more naturally about possibilities and plans that are not yet certain.

What do May and Might mean?

May そして might are modal verbs. We use them to talk about things that are possible, but not certain.

They express a degree of uncertainty. This means you are not 100% sure if something is true or will happen.

  • It is similar to saying “perhaps” or “it is possible.”
  • You use them when you are guessing or making a prediction that is not definite.

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When do we use May and Might?

当社では may そして might to talk about possibilities in the present or the future.

  • For present possibilities: You think something is true right now, but you are not sure. For example, He may be at home now.
  • For future possibilities: You think something could happen later, but it's not a definite plan. For example, We might go to the beach this weekend.
  • You use them when you don't have complete or definite information.

How do we form sentences with May and Might?

The structure for sentences with may そして might is very simple.

  • First, you need the subject (e.g., I, she, they).
  • Then, you add may または might.
  • Finally, you use the base form of the main verb (the infinitive without to).

Remember, you do not add -s to the main verb for he, she, 、または it.

Is there a difference between May and Might?

For expressing possibility, may そして might are often very similar and interchangeable.

  • Many native speakers use them in the same way.
  • Sometimes, might can suggest a slightly smaller or less likely possibility than may. However, this difference is often very small and not always important, especially at A2 level.
  • You can generally use either may または might to express possibility without a significant change in meaning.

What about negative sentences?

To make negative sentences with may そして might, you simply add not after the modal verb.

  • 使用方法 may not for negative possibilities. For example, It may not rain this evening. (It's possible it won't rain.)
  • 使用方法 might not for negative possibilities. For example, They might not come to the party. (It's possible they won't come.)
  • There are no common contractions for may not. While mightn't exists, might not is much more common, especially in spoken English.
Summary of May and Might Forms for Possibility
フォーム Positive Example Negative Example
May I may go to the party. I may not go to the party.
Might She might call later. She might not call later.

  • I may visit my grandparents this weekend.
  • She might be busy right now.
  • It may not be sunny tomorrow.
  • They might not finish the project on time.
  • He may call you later.
  • We might see a movie tonight.
  • The train may be late.

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Common Mistakes with May and Might

  • 使用方法 can for possibility: Many Spanish speakers incorrectly use can to express possibility, perhaps because of a similar use in Spanish. Remember, can is for ability.
    • 誤り: It can rain tomorrow. (This means it *has the ability* to rain.)
    • 右: It may rain tomorrow. または It might rain tomorrow.
  • Adding to その後 may または might: Modal verbs are followed directly by the base form of the verb.
    • 誤り: She might to go to the park.
    • 右: She might go to the park.
  • Adding -s to the main verb for he/she/it: The verb after may または might always stays in its base form.
    • 誤り: He may comes to the party.
    • 右: He may come to the party.

よくある質問

Can I use 'may' for permission?

はい、, may can also be used to ask for or give permission, for example, May I come in? または You may leave now. However, in this lesson, we are focusing on its use for possibility.

Are 'may' and 'might' formal or informal?

For expressing possibility, may そして might are generally neutral in formality. You can use them in both casual and more formal situations. May can sound slightly more formal when used for permission.

How are 'may' and 'might' tested in the A2 Key exam?

In the A2 Key (KET) exam, you might see may そして might in Part 5 (Multiple-choice cloze) or Part 6 (Open cloze) of the Reading and Writing paper. You may need to choose the correct modal verb to express possibility or complete a sentence that talks about an uncertain future event.

Is 'could' similar to 'may' and 'might' for possibility?

はい、, could can also express possibility, especially for future events, similar to may そして might. 例えば、, It could rain later means it's possible it will rain. At A2, focus on mastering may そして might first.

関連レッスン

著者について:ラウル・マグイニャ

ラウル・マグイニャ氏は、認定Cambridge English試験対策センターである「Asociación Educativa Langcom」の所長であり、 あなたの国. 。語学教育および国際資格認定の分野で10年以上の経験を持ち、25カ国にわたる数千人の学生、教師、教育機関が、ケンブリッジ英語検定、IELTS、TOEFL、およびMichiganの英語資格を取得できるよう支援してきました。.

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