으면
If and when (으면)
The everyday “if/when” ending — 비가 오면, 시간 있으면.
One ending, two English words
Attach (으)면 to a stem: vowel or ㄹ → 면; otherwise 으면. 비가 오면 집에 있어요 is both “if it rains” and “when it rains.” Past + 으면 is a counterfactual flavor you can learn later.
시간 있으면 전화하세요.
sigan isseumyeon jeonhwahaseyo.
Call if you have time.
모르면 물어보세요.
moreumyeon mureoboseyo.
If you don’t know, ask.
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