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시간이나

… hours

→ 시간
phrase Rare #20,428
… hours After a number, -이나 emphasizes the amount, often suggesting it is more than expected: “as many as … hours.”
KO: 숙제를 끝내는 데 세 시간이나 걸렸어요.
EN: It took me as many as three hours to finish my homework.

그, 제대로 가르칠 시간이나 있겠냐?

Like he even has time to teach you properly?

— The Match (2025)