더럽다 Korean adjective conjugation
to be dirty
Every form of 더럽다 across the four speech levels. It is ㅂ irregular — ㅂ becomes 우 before a vowel: 춥다 → 추워요.
기본형Principal parts
The four forms the dictionary prints. Every other form on this page is derived from them.
- 관형사형Modifier
- 더러운
- 아/어Infinitive
- 더러워
- -으니Since
- 더러우니
- 합니다Formal
- 더럽습니다
현재Present
The tense that does the most work. 해요체 is the one to learn first — it is polite without being formal, and it is what most conversation is in.
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 서술Statement | 더러워요 | 더럽습니다 | 더러워 | 더럽다 |
과거Past
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 서술Statement | 더러웠어요 | 더러웠습니다 | 더러웠어 | 더러웠다 |
미래·추측Future & presumptive
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| -겠-Will / must be | 더럽겠어요 | 더럽겠습니다 | 더럽겠어 | 더럽겠다 |
| -을 것이다Going to | 더러울 거예요 | 더러울 것입니다 | 더러울 거야 | 더러울 것이다 |
의문Questions
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 더러워요? | 더럽습니까? | 더러워? | 더러우니? |
| 과거Past | 더러웠어요? | 더러웠습니까? | 더러웠어? | 더러웠니? |
부정Negation
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 안Not (short) | 안 더러워요 | 안 더럽습니다 | 안 더러워 | 안 더럽다 |
| -지 않다Not (long) | 더럽지 않아요 | 더럽지 않습니다 | 더럽지 않아 | 더럽지 않다 |
높임Honorific
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 더러우세요 | 더러우십니다 | 더러우셔 | 더러우시다 |
| 과거Past | 더러우셨어요 | 더러우셨습니다 | 더러우셨어 | 더러우셨다 |
관형사형Modifying a noun
- 현재Present
- 더러운
- 과거Past
- 더러운
- 미래Future
- 더러울
- 회상Used to
- 더럽던
연결Joining clauses
- -고and
- 더럽고
- -게-ly / so that
- 더럽게
- -어서so / and then
- 더러워서
- -으니까since
- 더러우니까
- -으면if / when
- 더러우면
- -지만but
- 더럽지만
- -는데and / but (setting up)
- 더러운데
- -어도even if
- 더러워도
문형Sentence patterns
How the dictionary says this verb is used. The numbers are slots: 1 is the subject, 2 the object.
- 1이 더럽다
예문In real sentences
From the dictionary, each with its translation.
그 식당은 너무 더러워요.
That restaurant is too dirty.
더럽다고 생각하실 수 있습니다.
It's pretty disgusting.
하지만 생산 과정은 매우 더럽습니다.
It's really dirty in production.
저를 더럽고 쉬운 여자로 생각하더군요.
I have been considered loose and dirty for playing an instrument.
자주 묻는 질문Common questions
How do you conjugate 더럽다 in Korean?
더럽다 (to be dirty) is 더러워요 in the polite 해요체, 더럽습니다 in formal 합니다체, 더러워 in casual 반말 and 더럽다 in the plain written style. The past is 더러웠어요.
What is the past tense of 더럽다?
더러웠어요 in everyday polite speech, 더러웠습니다 formally. It is built from the 아/어 form 더러워 plus ㅆ, which is why an irregular stem shows its irregularity here.
Is 더럽다 irregular?
Yes — it is ㅂ irregular (ㅂ 불규칙). ㅂ becomes 우 before a vowel: 춥다 → 추워요. That is why the stem looks different in 더러워 and 더러우니 but unchanged in 더럽습니다.
What TOPIK level is 더럽다?
2급 — TOPIK 2, elementary.
Dictionary form, meaning, sentence patterns, examples and audio from the 국립국어원 한국어기초사전, used under CC BY-SA 2.0 KR.
Conjugations are generated by this site's own engine and checked against the 9,380 forms the dictionary publishes on every build.