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are at

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phrase Common #2,577
are at A respectful way to say that someone is at a place. The person being referred to is often understood from context.
KO: 할머니는 집에 계세요.
EN: Grandma is at home.

요즘은 말라가에 계세요?

Are you staying in Málaga these days?

— 토니 에드만 (2016)

아버지는 가게에 계세요

My father is at the store.

— 캐치 미 이프 유 캔 (2002)

저 아래 차에 계세요 여보세요?

Are you in the car down there? Hello?

— 레베카 (1940)