Setting the Scene: -는데/-(으)ㄴ데
Use -는데/-(으)ㄴ데 to set the scene, give background before a question or request, show contrast, and soften the end of a sentence.
Mr. Gaon · Grammar, vocabulary & TOPIKWhat you will learn in this lesson
- Attach -는데 to verbs and -(으)ㄴ데 to adjectives and nouns
- Give background before a question, request or suggestion
- Show soft contrast and know how it differs from -지만
- Use -는데요 to sound polite and leave room for the listener
Welcome back! Today’s ending is one of the most useful in spoken Korean. Koreans use -는데 all day long, often several times in one minute. Once you learn it, your Korean will sound much more natural.
What does -는데 do?
-는데 connects two clauses. The first clause gives background information: the situation, the setting, or some facts the listener needs. Then the second clause says the main point.
In English, we often use 'so', 'but', 'and' or just a pause for this. For example: 'I’m at the station now. Where should I go?' In Korean: 지금 역에 있는데 어디로 가면 돼요?
-는데 has three main jobs:
1. Background before a question, request, suggestion or statement. 2. Contrast, a soft 'but'. 3. A soft sentence ending (-는데요), which leaves something unsaid and invites a reaction.
First, let’s learn the attachment rules, because they depend on the word type.
background, setting, soft contrast
- Action verbs take -는데: 가다 → 가는데, 먹다 → 먹는데.
- 있다 and 없다 (and words ending in them, like 재미있다, 맛없다) also take -는데: 있는데, 맛있는데.
- Adjectives ending in a vowel take -ㄴ데: 비싸다 → 비싼데, 바쁘다 → 바쁜데.
- Adjectives ending in a consonant take -은데: 작다 → 작은데, 많다 → 많은데.
- Nouns take 인데: 학생인데, 의사인데, 친구인데.
- Past tense: -았/었는데 for every word type: 갔는데, 비쌌는데, 학생이었는데.
- ㄹ stems drop ㄹ: 살다 → 사는데, 만들다 → 만드는데, 길다 → 긴데, 멀다 → 먼데.
- 지금 역에 있는데 어디로 가면 돼요? [지금 여게 인는데 어디로 가면 돼요] jigeum yeoge inneunde eodiro gamyeon dwaeyo?I’m at the station now. Where should I go?
- 이 가게는 작은데 손님이 많아요. i gageneun jageunde sonnimi manayo.This shop is small, but it has a lot of customers.
- 제 동생은 대학생인데 요즘 아르바이트를 해요. je dongsaengeun daehaksaenginde yojeum areubaiteureul haeyo.My younger sibling is a college student and works a part-time job these days.
Conjugation table
| Dictionary form | Type | Present | Past |
|---|---|---|---|
| 가다 | verb | 가는데 | 갔는데 |
| 먹다 | verb | 먹는데 | 먹었는데 |
| 만들다 | verb, ㄹ stem | 만드는데 | 만들었는데 |
| 듣다 | verb, ㄷ irregular | 듣는데 | 들었는데 |
| 재미있다 | 있다 word | 재미있는데 | 재미있었는데 |
| 싸다 | adjective | 싼데 | 쌌는데 |
| 좋다 | adjective | 좋은데 | 좋았는데 |
| 멀다 | adjective, ㄹ stem | 먼데 | 멀었는데 |
| 춥다 | adjective, ㅂ irregular | 추운데 | 추웠는데 |
| 그렇다 | adjective, ㅎ irregular | 그런데 | 그랬는데 |
| 학생이다 | noun + 이다 | 학생인데 | 학생이었는데 |
The word 그런데 ('but, by the way') at the start of a sentence comes from 그렇다 + -ㄴ데. In speech it often shortens to 근데.
Here is the most common mistake: learners say 싸는데 or 좋는데. Ask yourself, 'Is this an action or a description?' Actions take -는데, descriptions take -(으)ㄴ데. Only 있다 and 없다 break the pattern.
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Use 1: Background before the main point
- 내일 친구 생일인데 뭘 선물하면 좋을까요? naeil chingu saengirinde mwol seonmulhamyeon joeulkkayo? It’s my friend’s birthday tomorrow. What would be a good gift? Background → question
- 제가 지금 손이 좀 바쁜데 문 좀 열어 주세요. jega jigeum soni jom bappeunde mun jom yeoreo juseyo. My hands are a bit full right now. Could you open the door, please? Background → request
- 날씨가 좋은데 공원에 갈까요? nalssiga joeunde gongwone galkkayo? The weather is nice. Shall we go to the park? Background → suggestion
- 어제 백화점에 갔는데 사람이 정말 많았어요. eoje baekwajeome ganneunde sarami jeongmal manasseoyo. I went to the department store yesterday, and it was really crowded. Setting → what happened
- 한국어를 배우는데 발음이 제일 어려워요. [한구거를 배우는데 바르미 제일 어려워요] hangugeoreul baeuneunde bareumi jeil eoryeowoyo. I’m learning Korean, and pronunciation is the hardest part.
- 제가 부산에 사는데 다음 주에 서울에 가요. jega busane saneunde daeum jue seoure gayo. I live in Busan, and I’m going to Seoul next week. 살다 → 사는데
Use 2: Soft contrast
- 이 식당은 비싼데 맛은 별로예요. i sikdangeun bissande maseun byeolloyeyo. This restaurant is expensive, but the food is not that good.
- 열심히 공부했는데 시험을 잘 못 봤어요. [열씸히 공부핸는데 시허믈 잘 몯 뽜써요] yeolsimhi gongbuhaenneunde siheomeul jal mot bwasseoyo. I studied hard, but I didn’t do well on the exam.
- 집은 학교에서 먼데 지하철역은 가까워요. jibeun hakgyoeseo meonde jihacheoryeogeun gakkawoyo. My house is far from school, but it’s close to a subway station.
- 밖은 추운데 안은 따뜻해요. bakkeun chuunde aneun ttatteutaeyo. It’s cold outside, but warm inside.
-는데 vs -지만
- 이 옷은 예쁘지만 비싸요. i oseun yeppeujiman bissayo. These clothes are pretty, but expensive. -지만 is a clear, direct 'but'. Good for writing and for strong contrast.
- 이 옷은 예쁜데 비싸요. i oseun yeppeunde bissayo. These clothes are pretty, but (you know) expensive. -는데 is a softer contrast, very common in conversation.
- 배가 고픈데 같이 밥 먹을래요? [배가 고픈데 가치 밥 머글래요] baega gopeunde gachi bap meogeullaeyo? I’m hungry. Do you want to eat together? Background, not contrast. -지만 is impossible here.
- 배가 고프지만 같이 밥 먹을래요? (✘) baega gopeujiman gachi bap meogeullaeyo? (✘) Unnatural -지만 means 'but', so this sounds like 'I’m hungry, but do you want to eat?' — illogical.
Use 3: Ending a sentence with -는데요
When you put -요 after -는데, the sentence stops in the middle, as if something is left unsaid. This sounds soft and polite, and it invites the listener to respond.
- Answering the phone: 여보세요? 김민지 씨 핸드폰인데요. ('Hello? This is Kim Minji’s phone.') - Gently disagreeing: 저는 괜찮은데요. ('I’m fine, though.') - Showing surprise: 와, 이 케이크 정말 맛있는데요! ('Wow, this cake is really good!') - Hesitating before a request: 저기요, 이거 좀 작은데요… ('Excuse me, this is a bit small…')
In the last example, the speaker does not say 'please exchange it', but the listener understands. This indirect style is very Korean. Saying less can be more polite.
-는데 vs -아서/어서
- 비가 와서 우산을 샀어요. biga waseo usaneul sasseoyo. It rained, so I bought an umbrella. -아서/어서 gives a cause.
- 비가 오는데 우산이 없어요. biga oneunde usani eopseoyo. It’s raining, and I don’t have an umbrella. -는데 gives the situation. It is not saying the rain caused the missing umbrella.
Dialogue: Asking for directions
Fun fact: when Koreans text, they often end with -는데 or -는데ㅠㅠ to sound gentle. If a friend writes 나 지금 집인데, they are probably waiting for you to ask 'Why? What’s up?'
Check quiz
Q1. Choose the correct form: 이 신발은 ___ 편해요. (싸다)
Q2. Choose the correct form: 이 드라마는 ___ 너무 길어요. (재미있다)
Q3. Which sentence is unnatural?
Q4. What is the -는데 form of 살다?
Q5. Fill in the blank: 어제 친구 집에 ___ 친구가 없었어요.
Q6. A shop clerk shows you a shirt. You say 이거 좀 큰데요… What are you most likely saying?
Well done! Try this today: before you ask someone a question, give one piece of background with -는데. For example, 제가 외국인인데… You will sound more natural right away.
Key points
- Verbs and 있다/없다 take -는데; adjectives take -(으)ㄴ데; nouns take 인데.
- Past tense is -았/었는데 for every word type.
- -는데 gives background before a question, request or suggestion; -지만 cannot do this.
- -는데 can also be a soft 'but' in conversation.
- Ending a sentence with -는데요 sounds soft, polite or surprised, and invites a reply.
Recommended official free resources
- Korean Language Teaching & Learning Center — National Institute of Korean Language
- Study Korean — Overseas Koreans Agency
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