could … should … would
/kʊd/ … /ʃʊd/ … /wʊd/
I wish I could play the piano.
I wish I could swim.
I should clean my bedroom, but I don’t want to.
I should go to my swimming lesson, but I’m afraid.
I have to fix this leaky faucet. I would rather be doing something else.
I would rather be watching tv.
I would rather be taking a nap right now.