Korean phrase
왜 ~ 바꿨어요? wae ~ pa kkwo sseo yo
Meaning
Why did you change ___?
When to use it
This politely asks why something was changed. It is slightly casual but respectful in everyday conversation.
Example dialogue
프로필 사진을 왜 저걸로 바꿨어요? peu ro pil sa ji neul wae cheo geol lo pa kkwo sseo yo
Why did you change your profile picture to that one?
최근에 찍은 사진이 더 마음에 들어서요. choe geu ne jji geun sa ji ni teo ma eu me teu reo seo yo
Because I like the photo I took recently better.