가는 김에 (while going)
온 김에 (since you came)
는 김에 While you're at it
Core meaning - While you're at it
Form - Verb past + 김에; Verb stem + 는 김에
Usage - Focus on the highlighted segment in each example; surrounding words can change while the pattern function stays the same.
Use this pattern for its grammatical function, not as a literal word-by-word translation.
See examples below for varied real-world usage.
는 김에 for ongoing, 온 김에 for completed
- ✅ 가는 김에 (while going)
- ✅ 온 김에 (since you came)
Different from -(으)면서 — 는 김에 is about opportunity, not simultaneous actions
Implies efficiency — the second action takes advantage of the first
While you're going to the mart, please buy milk too.
While I'm going to Seoul, I'll meet my friend too.
Since you're here, have a cup of tea before you go.
While you're cleaning, please organize this too.
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