Yes, can and could are often interchangeable.
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Aspara GusYes, can and could are often interchangeable.Thank you. So, there's really no difference at all? What's the point of having both usages then?
fivejedjon'Could' is more remote in reality than 'can'.I can skip it - real possibility.I could skip it - less real, more hypothetical, possibility.Thank you kind sir!