건물을

the building

→ 건물
phrase Rare #26,181
the building 건물 means “building,” and 을 marks it as the object of the verb. The 을 is usually not translated directly into English.
KO: 건물을 청소하고 있어요.
EN: I’m cleaning the building.

건물을 포위해

Surround the building.

— 이반의 어린 시절 (1962)

건물을 감시하고 있다고.

I'm telling you, I'm keeping an eye on the building.

— 더스트 버니 (2025)

건물을 지었어요.

I built a building.