Core Grammar Rule: -(으)ㄹ 겸
This pattern is used to connect two or more verbs, indicating that an action is performed for multiple purposes. It's like saying "for the purpose of A and also B" or "to do A and B".
Meaning & Usage
Meaning: It attaches to a verb stem to list two or more intended actions or purposes behind a single course of action (like going somewhere). The full phrase is often A-(으)ㄹ 겸 B-(으)ㄹ 겸 followed by a verb like 가다 (to go), 오다 (to come), or 하다 (to do).
When to use: Use it when you want to sound natural explaining your multi-purpose plans. For example, instead of saying "I will go to the library. I will study. I will also return a book," you can combine them: "I'm going to the library to study and to return a book." (공부도 할 겸 책도 반납할 겸 도서관에 가요).
Conjugation Rules
Rule: The choice between -ㄹ 겸 and -을 겸 depends on whether the verb stem ends in a vowel or a consonant.
Vowel: Attach -ㄹ 겸 to verb stems ending in a vowel or the consonant ㄹ. For ㄹ-stems, the ㄹ is dropped before adding -ㄹ 겸.
가다 (to go) → 갈 겸
보다 (to see) → 볼 겸
만들다 (to make) → 만들 겸 (만들 + ㄹ 겸 → 만드ㄹ 겸 → 만들 겸)
Consonant: Attach -을 겸 to verb stems ending in a consonant (except ㄹ).
먹다 (to eat) → 먹을 겸
찾다 (to find/look for) → 찾을 겸
Vowel/ㄹ: -ㄹ 겸 / Consonant: -을 겸
Common Combinations
-(으)ㄹ 겸 frequently pairs with verbs of movement or general action to explain the purpose of that action.
Combining with Movement Verbs (가다/오다/나오다 etc.)
Context: This is the most common usage. You explain why you are going, coming, or going out. The -(으)ㄹ 겸 phrase acts as the reason for the movement.
Example: 기분 전환도 할 겸 운동도 할 겸 공원에 가요. (I'm going to the park to refresh my mind and also to exercise.)
Combining with 하다
Context: When the action itself is the focus, rather than the movement, you can end the sentence with 하다 (to do) or a related verb. This is often used when one of the purposes is a general one, like "just in case" or "for practice."
Example: 한국어 연습도 할 겸 드라마를 한국어 자막으로 봐요. (I watch dramas with Korean subtitles to practice Korean and for other reasons.)
[Movement Verb] + -(으)ㄹ 겸 = Explains the purpose of going/coming / [Action Verb] + -(으)ㄹ 겸 + 하다 = Explains the purpose of doing something
-(으)ㄹ 겸 vs. -고 and -(으)러
The pattern -(으)ㄹ 겸 is specifically for expressing two or more purposes for a single action, implying efficiency. It's different from simply listing sequential actions.
Nuance of -(으)ㄹ 겸
Use this pattern to combine multiple intentions behind one main verb, like 가다 (to go) or 하다 (to do).
It suggests that you are killing two birds with one stone.
Example: 전공 책도 살 겸 새 소설책도 구경할 겸 왔어요. (I came for the purpose of buying a textbook and also looking at novels.)
What to Avoid
Using -고 (and): 책을 사고 구경했어요 means "I bought a book and then I looked around." It describes two separate actions, not two purposes for one action.
Using -(으)러 (in order to) repeatedly: While 책을 사러 왔어요 (I came to buy a book) is correct, stringing multiple -(으)러 clauses together can sound unnatural. -(으)ㄹ 겸 is the preferred way to combine purposes.
전공 책도 살 겸 구경도 할 겸 왔어요. / 용돈도 벌 겸 구경도 할 겸 해서.
Answering "What brings you here?"
When someone asks why you are somewhere or what your plans are, -(으)ㄹ 겸 is a perfect tool for giving a detailed and natural-sounding answer.
Responding to "어쩐 일로 오셨어요?"
This is a polite and common question when you meet someone unexpectedly.
You can answer by stating your multiple purposes for being there.
Example: A: 여기는 어쩐 일로 왔어요? (What brings you here?) B: 전공 책도 살 겸 새 소설책도 구경할 겸 왔어요. (I came to buy a textbook and also to look at new novels.)
Explaining Your Plans
You can also use it to elaborate on your plans when asked.
Example: A: 주말에 뭐 할 거야? (What are you doing this weekend?) B: 용돈도 벌 겸 영화 촬영장 구경도 할 겸 해서 (알바하려고). (To earn some money and also to see a movie set, I'm thinking of doing a part-time job.)
여기는 어쩐 일로 왔어요? / 전공 책도 살 겸 구경도 할 겸 왔어요.
Politeness & Formality
The core grammar -(으)ㄹ 겸 itself doesn't change, but the sentence ending determines the politeness level, which is crucial in Korean.
Polite Form (해요체/하십시오체)
Context: Use this when speaking to someone older, a superior (like a professor or boss), or someone you've just met. The dialogues show this with the professor. The sentence must end with -아요/어요 or the more formal -ㅂ니다/습니다.
Example: 주문한 책도 찾을 겸 바람도 쐴 겸 나왔습니다. (I came out to pick up a book I ordered and also to get some fresh air.)
Casual Form (반말)
Context: Use this with close friends, younger people, or family. The sentence ending becomes more relaxed, like -아/어 or just a noun. The dialogue with the friend demonstrates this.
Example: 영화도 볼 겸 쇼핑도 할 겸 홍대에 갈까 생각 중이야. (I'm thinking of going to Hongdae to see a movie and also to shop.)
Polite: 친구도 만날 겸 한국어 공부도 할 겸 한국에 왔어요. / Casual: 친구도 만날 겸 공부도 할 겸 한국에 왔어.