A11K

Could

UK /["/kəd//kʊd/","/ˈkʊdnt/"]/US /["/kəd//kʊd/","/ˈkʊdnt/"]/

Definition

used as the past tense of ‘can’

In simple words: used to express possibility or ability in the past

Examples

  • I could help you with your homework if you want.
  • When I was younger, I could climb trees easily.
  • Could you please pass me the salt?
  • She said she could sing very well.
  • I could go to the party if I finish my work early.
  • Could we meet tomorrow instead of today?
  • If I tried harder, I could improve my English.
  • I wish I could travel the world someday.
  • He could run faster than anyone in his class.

Usage notes

Used to talk about ability, requests, and possibilities. Considered neutral; avoid in very formal writing.

Grammar pattern

could + base verb

Memory hint

Sounds like 'could' — think of a cape that could let you fly.

Collocations

  • could have
  • could you
  • could not
  • could be

Synonyms

  • might
  • may
  • was able to
  • had the ability to

Antonyms

  • couldn't
  • can't

Common mistakes

  • Confused with 'can' for present ability instead of past.
  • Omitting the base verb after 'could'.
  • Using 'could' for future intentions instead of 'would' or 'will'.