는 왜 안

why doesn't …?

→ 는
phrase Rare #20,229
why doesn't …? The topic marked with 는 is the person or thing that is not doing something; 안 comes before the verb to negate it.
KO: 민수는 왜 안 자?
EN: Why isn't Minsu sleeping?

엘리아나는 왜 안 왔어요?

Why didn't Eliana come?

— 아임 스틸 히어 (2024)

진태는 왜 안 오니?

Why isn't Jintae coming?

— 마더 (2009)