Usages of jeongu
방 전구가 갑자기 나가서 밤에 책을 못 읽었어요.bang jeonguga gapjagi nagaseo bame chaegeul mos ilgeosseoyo.
The room’s light bulb suddenly went out, so I couldn’t read at night.
새 전구를 사 왔으니까 지금 갈아 끼우면 돼.sae jeongureul sa wasseunikka jigeum gara kkiumyeon dwae.
I bought a new light bulb, so I can replace it now.
방 전구를 새 전구로 갈아 끼웠어요.bang jeongureul sae jeonguro gara kkiwosseoyo.
I replaced the room light bulb with a new bulb.
집주인에게 수리를 부탁했더니 고장 난 전구를 바로 바꿔 줬어.jipju-inege surireul butakhaessdeoni gojang nan jeongureul baro bakkwo jwosseo.
I asked the landlord for a repair, and she replaced the broken light bulb right away.
호텔 직원이 고장 난 전구를 바로 바꿔 줬어요.hotel jigwoni gojang nan jeongureul baro bakkwo jwosseoyo.
The hotel staff replaced the broken light bulb for me right away.
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Korean has multiple speech levels that indicate formality and politeness. The most common are the formal polite (‑습니다/‑ㅂ니다), informal polite (‑아요/‑어요), and casual (‑아/‑어) forms. Which level you use depends on who you're speaking to and the social context.
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