When do I use “can” or “could”?
I was doing some reading on usage of can and could. I understand that can is used when asking for ability, and could for willingness.
I would use can in the following sentence.
Can I have one apple from your box?
After reading about the usage of can and could, I am confused. Actually, this is not about my ability of taking the apple; of course, I can take (snatch) the apple even if he/she does not give it to me. So I guess according to the above rule I should be using could and not can. Using could here somehow does not sound correct to me. So I just wanted to confirm whether it is correct or not.