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We use could to ask for permission. Could is more formal and polite than can: Could I ask you a personal question?
May 27, 2026
We use could to ask for permission. Could is more formal and polite than can: Could I ask you a personal question? Learn about the modal verbs can and could and do the exercises to practise using them.
Understanding the Context
Could is also used to talk about ability in the present, but it has a special meaning. If you say that someone could do something, you mean that they have the ability to do it, but they don't in fact do it.