Could Where to Use?

"Could" is a modal verb used to express possibility or past ability as well as to make suggestions and requests.
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Using "Could" in Present, Past, and Future
  1. John could be the one who stole the money.
  2. John could have been the one who stole the money.
  3. John could go to jail for stealing the money.

Where we use can and could?

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.

Can or could use?

Could is the past tense of can. It is used to talk about ability that existed in the past. In my younger days I could run four miles at a stretch.
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Could is the past tense of can in indirect speech.
  • He said, ' I can lift this box. ...
  • He said that he could lift that box.
  • She said, 'I can't see anything.
Sophia Al-Mansoor

Sophia Al-Mansoor

Global Business & E-Commerce Reporter

Sophia analyzes international trade, startup ecosystems, retail transformation, and supply chain logistics for modern digital publications.