Let's learn how to use the V+는 김에 Korean Grammar with some simple and easy-to-understand example sentences.
V+는 김에 ( “while you’re at it,”)
USE:
The grammar pattern -는 김에 is used to express “while you’re at it,” “since you’re doing it,” or “as you’re doing it.”
It connects two actions ~ one main action and another additional action that happens conveniently at the same time or on the same occasion.
It’s used when:
You take advantage of one situation to do something else.
The second action is done because the first one is already happening.
English equivalents:
“Since I’m already doing ___, I also did ___.”
“While I was at ___, I also ___.”
“As I was doing ___, I decided to ___.”
CONJUGATION RULE
To form this pattern, attach -는 김에 to the verb stem of an action verb.
For example:
가다 (to go) → 가는 김에 → while going / since I’m going
먹다 (to eat) → 먹는 김에 → while eating / since I’m eating
If the sentence refers to something in the past, you can use -(으)ㄴ 김에,
and for something in the future, you can use -(으)ㄹ 김에.
Examples:
간 김에 → since I went / while I was there
갈 김에 → since I’ll go / when I go
However, -는 김에 (present form) is the most commonly used in everyday Korean.
EXAMPLE SENTENCES:
1. 은행에 가는 김에 우체국에도 들렀어요.
→ Since I was going to the bank, I also stopped by the post office.
2. 요리하는 김에 설거지도 했어요.
→ While I was cooking, I also did the dishes.
3. 서울에 간 김에 친구도 만났어요.
→ Since I went to Seoul, I also met my friend.
4. 밖에 나가는 김에 쓰레기도 버려 주세요.
→ Since you’re going out, please throw away the trash too.
5. 운동하러 간 김에 장도 봤어요.
→ Since I went to work out, I also did some grocery shopping.
Additional Notes
- 1. This grammar connects related actions naturally — the second action happens because of the first one.
- 2. It’s not used for completely unrelated actions.
❌ 공부하는 김에 친구를 만났어요. (awkward — meeting a friend has no link with studying) - 3. It can be used in both past and present contexts depending on the situation.
- 4. Very commonly used in daily conversation to sound natural and fluent.
