Choose the perfect synonym or antonym for the word

Could

A form of the verb 'can', used to express possibility, permission, or ability in the past.

Synonyms:

This word has no antonyms

She could hear a pin drop in the silent room.If we hurry, we could catch the earlier train.Could you open the window, please?

Originating in Middle English from the Old English cūþe, past tense of cunnan, meaning to be able.

1541 mentions per 1 million words

Very Often

Hint: Frequency according to COCA