When to use to become in Korean
Korean: 되다[ doe-da ]

When to use it
The word "되다" means "to become" or "to turn into." You use it when someone or something changes into a new state, time, job, or condition. It is very common in everyday Korean, like becoming a student, becoming evening, or becoming cheaper.
Example sentences
저는 올해 중학생이 되었어요.
I became a middle school student this year.
저녁이 되었어요. 밥을 먹어요.
It became evening. Let's eat.
봄이 되면 공원에 꽃이 많아요.
When it becomes spring, there are many flowers in the park.
제 동생은 의사가 되고 싶어요.
My younger sibling wants to become a doctor.
이 가방은 할인해서 오천 원이 되었어요.
This bag became 5,000 won because of the discount.
이제 공항에 갈 시간이 되었어요.
Now it is time to go to the airport.