Can and Could Usage?

Can, like could and would, is used to ask a polite question, but can is only used to ask permission to do or say something ("Can I borrow your car?" "Can I get you something to drink?"). Could is the past tense of can, but it also has uses apart from that--and that is where the confusion lies.

When I use can or could?

'Can' is a modal verb, which is used with the main verb to express the ability of a person or thing in doing something. On the other extreme, 'could' is the past participle or second form of the verb, which is used with the main verb to talk about a past the ability of an individual in doing something.

How use can and could?

Could is the past tense of can. It is used to talk about ability that existed in the past.
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Could is the past tense of can in indirect speech.
  1. He said, ' I can lift this box. '
  2. He said that he could lift that box.
  3. She said, 'I can't see anything. '
  4. She said that she couldn't see anything.
David Miller

David Miller

Executive Financial & Market Analyst

David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.