can

/kæn/ (bre, ipa) · [kˈæn] /kæn/ (ame, ipa) · [kˈæn] /kən, ˈkan also ˈken; dialectal ˈkin/ (ame, mw)

can — modal verb

1. used to show that someone or something has the ability, knowledge, or physical p

1.情態動詞A1
釋義

used to show that someone or something has the ability, knowledge, or physical power to do something.

例句

Yuna can fix her bike without asking the mechanic.

can + base verb for learned skill

Christopher can smell smoke from the kitchen downstairs.

用法筆記

Followed by a base verb and often used for skill, physical ability, or what the senses let you notice. Distinguish from sense 7, which is about what may happen or be true rather than what the subject is able to do.

2. a brisk reply promising that the speaker will handle the task.

2.情態動詞B1
釋義

a brisk reply promising that the speaker will handle the task.

例句

"Need a ride to the airport?" "Can do after lunch."

fixed reply 'can do' for willing acceptance

"Can you print the tickets?" "Can do before noon."

用法筆記

Most often appears as the set phrase 'can do' after a request, promising action instead of describing ability.

3. used in an informal reply to say that something cannot be done or will not be ag

3.情態動詞B1
釋義

used in an informal reply to say that something cannot be done or will not be agreed to.

例句

"Can you stay later tonight?" "Sorry, no can do."

fixed reply 'no can do' for refusal or impossibility

I asked for a Saturday slot, but the clinic said no can do.

用法筆記

Mainly fixed in the reply 'no can do', often sounding informal or slightly playful. Distinguish from sense 2, which accepts the request rather than refusing it.

4. marks an action as allowed by rules, instructions, or another person's decision.

4.情態動詞A1
釋義

marks an action as allowed by rules, instructions, or another person's decision.

例句

Can I park beside the school gate after six?

asking whether an action is permitted

Students can borrow three library books each week.

用法筆記

This sense is about permission from rules, staff, or another person. Distinguish from sense 1, which is about ability, not permission.

5. used in spoken English to tell someone sharply that they must do something.

5.情態動詞B2
釋義

used in spoken English to tell someone sharply that they must do something.

例句

Touch my laptop again and you can leave now.

spoken threat or irritated command

If the boys keep shouting, they can clean the hall.

用法筆記

Spoken and usually irritated; the speaker is not giving free permission but ordering the listener to act at once.

6. used in questions to ask permission or to ask someone to do something in a polit

6.情態動詞A1
釋義

used in questions to ask permission or to ask someone to do something in a polite way.

例句

Can you pass the red folder to Gabriela?

Can you ... ? for a polite request

Can I sit by the window during the trip?

用法筆記

Common in polite spoken questions. Unlike sense 4, the focus is the act of asking, not the permission itself.

7. marks something as a real possibility, a doubtful guess, or a practical suggesti

7.情態動詞A2
釋義

marks something as a real possibility, a doubtful guess, or a practical suggestion.

例句

A strong wind can break these old windows.

can for possibility or general tendency

This bus can get crowded after the football match.

用法筆記

This sense covers possibility, doubt, general tendency, and practical suggestions. Distinguish from sense 1 because the subject may not control the situation.

8. used in a polite question when you offer to help someone.

8.情態動詞A2
釋義

used in a polite question when you offer to help someone.

例句

Can I carry those boxes into the kitchen?

Can I ... ? as an offer of help

Can I get you a glass of water?

用法筆記

Usually said by the person who is offering help, often with 'Can I...?' before naming the helpful action.

can — noun

can — verb