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들어오시면 안

must not come in

→ 들어오다
phrase Rare #13,709
must not come in This is part of the polite prohibition pattern 들어오시면 안 돼요, meaning “you must not come in.” 들어오시면 is the honorific conditional form of 들어오다, “to come in.”
KO: 이 방에는 들어오시면 안 돼요.
EN: You must not come into this room.

들어오시면 안 돼요

You’re not allowed to come in.

— 인생 (1994)

여기 들어오시면 안 돼요

You’re not allowed in here.

— 행복한 라짜로 (2018)

여기 들어오시면 안 됩니다!

You must not come in here!

— 귀시 (2025)