1646, in the meaning defined above
Is it 'could' or 'couldn't care less'?
Can you care fewer?
could have sworn
couldn't
couldn't be happier
“Couldn't.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/couldn%27t. Accessed 30 Nov. 2024.
Nglish: Translation of couldn't for Spanish Speakers
Britannica English: Translation of couldn't for Arabic Speakers
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