When to use to change in Korean
Korean: 변하다[ byeon-ha-da ]

When to use it
"변하다" means "to change." You use it when a person, thing, place, plan, or situation becomes different from before. It is a very common everyday word for talking about changes in weather, feelings, looks, prices, and more.
Example sentences
날씨가 갑자기 변했어요.
The weather changed suddenly.
집 분위기가 많이 변했어요.
The atmosphere at home changed a lot.
새 선생님이 와서 교실이 변했어요.
A new teacher came, so the classroom changed.
머리를 자르니까 얼굴이 좀 변했어요.
After I cut my hair, my face looked a little different.
세일 후에 가격이 변할 수 있어요.
The price can change after the sale.
여행하면서 계획이 자주 변해요.
The plan changes often while traveling.