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could
UK
/kʊd/
US
/kʊd/
could not
could not
could not
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AI Expert
Compare “could” for past ability, possibility, and polite requests.
Explain why “could” sounds more polite than “can” in “Could you pass me the paper?”
Use “could” to make three suggestions for a friend planning a trip.
Explain the difference between “You could be right” and “You can be right.”
Practise “could have + past participle” for missed opportunities or past possibilities.
Write three conditional sentences with “could” and explain what makes each situation hypothetical.
Give examples showing how “could” differs from “was able to” when describing a specific past achievement.
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