Practice writing using 아/어/여도 되다 (Corrections Appreciated!)

오빠, 저를 보고 싶지않으시면, 안보셔도 되요 - If you don't want to see me, you don't have to

오빠, 이거 안 사도 돼요 - You don't have to buy it

그거  보고싶지않으면 안보셔도 돼요 - If you don't want to watch it, you don't have to

오빠, 그거 안 해도 됐어요 - You didn't have to do that 
 
-졸리시면 주무시러 가셔도 되요 if you go to sleep it's okay  (if you are sleepy, you can go to bed)

공부 안해도 돼요(or you can also say 공부 안해도 괜찮아요)- it's okay even if you don't study

몰라도 돼요(괜찮아요) - it's okay if you don't know

그거 좋아하지 않아도 괜찮아요 - It's okay if you don't like it

음악(을) 들어도 돼요? - Is it okay if i listen to music?

웃어도 돼요? - Is it okay if i laugh?

그거 싫어해도 돼요? - is it okay if i don't like it?

안 먹어도 돼요? - Is it okay if i don't eat it?