future ability

permission

past ability

past possibility

present possibility

future possibility

present ability

complaint

She could have told you he was her boyfriend's father!

He could have got out through the bathroom window.

If you are late back from work, I could leave it in the oven.

Shiela's in the office - she could do it now.

Could I take 5 minutes of your time at the end?

He could well be late - he usually is.

She could speak French pretty well, I recall.

The match could be on the other channel. Why don't you look?