You want to borrow friend's laptop.
(can) + answer the question
- Can I borrow your laptop?
- Yes, no problem
You want to have another piece of cake.
(could) + your possible answer
Could I have another piece of cake, please?
Yes, sure. / Yes, of course.
You want to open the door.
(could) + your possible answer
Could I open the door?
No, please don't.
You want to change the TV channel.(could) + your possible answer
Could I change the TV channel?No, I'd rather you didn't do that.
You want to borrow some money.
(could) + your possible answer
Could I borrow some money?
No, I'm sorry, that's not possible.
You want to turn on the air conditioning.
(can) + your possible answer
Can I turn on the air conditioning?
Yes, please feel free.
You want to have one more glass of lemonade.
(can) + your possible answer
Can I have another glass of lemonade?
Yes, go ahead.
You want to move to a new desk at work.
(could) + your possible answer
Could I move to that new desk next to the window?
No, I'm afraid that it's impossible.
