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English definition of “could”

could

verb (CAN)    strong /kʊd/ weak /kəd/
A2 past simple of can, used to talk about what someone or something was able or allowed to do: When I was younger I could stay up all night and not get tired . It was so noisy that we couldn't hear ourselves speak . You said we could watch television when we've finished our homework . We asked if the computer could access the internet . Grammar:CouldGrammar:Could: formGrammar:Could: usesGrammar:Could: pastWe don’t usually use could to talk about single events that happened in the past.Grammar:Could, may and mightWe use could, may and might to express degrees of possibility. Many native speakers disagree on which one expresses more or less certainty.
(Definition of could verb (CAN) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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