English · Word Candidate

couldn't

/ˈkʊd.n̩t/

Proposed by a contributor, not yet supported by evidence.

Both English Tiếng Việt

Meaning · English

could not (negative auxiliary)

Nghĩa · Tiếng Việt

không thể

Machine-translated — suggest a fix

Verb

You couldn’t lend me a lighter, could you?

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Common questions

What does “couldn't” mean?

could not (negative auxiliary)

Is “couldn't” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.

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