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Irregular verb

swear

/sweə/

Base
swear
Past simple
swore
Past participle
sworn

Usage

swore names a single moment; sworn needs have/has/had, or works as an adjective, as in sworn enemies.

Meaning

  • to make a serious promise or use offensive words

Example

He swore that he had told the truth.

She swore under her breath after tripping.

The witness has sworn to tell the truth.