When to use to enter in Korean
Korean: 들어가다[ deul-eo-ga-da ]

When to use it
들어가다 means "to enter" or "to go in." Use it when a person or thing moves from outside to inside a place, like a house, classroom, store, or tunnel. In daily English, it often matches "go in" as well as "enter."
Example sentences
엄마가 집에 들어가요.
Mom goes into the house.
학생들이 교실에 들어가요.
The students enter the classroom.
비가 와서 우리는 카페에 들어갔어요.
It rained, so we went into a cafe.
먼저 들어가세요.
Please go in first.
저는 가게에 들어가서 우유를 샀어요.
I went into the store and bought milk.
기차가 터널에 들어가요.
The train enters the tunnel.