덧나다 Korean verb conjugation
to get worse, to become infected
Every form of 덧나다 across the four speech levels. It is a regular stem, so the endings below attach without changing it.
기본형Principal parts
The four forms the dictionary prints. Every other form on this page is derived from them.
- 관형사형Modifier
- 덧나는
- 아/어Infinitive
- 덧나
- -으니Since
- 덧나니
- 합니다Formal
- 덧납니다
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 | 덧나요 | 덧납니다 | 덧나 | 덧난다 |
과거Past
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 서술Statement | 덧났어요 | 덧났습니다 | 덧났어 | 덧났다 |
미래·추측Future & presumptive
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| -겠-Will / must be | 덧나겠어요 | 덧나겠습니다 | 덧나겠어 | 덧나겠다 |
| -을 것이다Going to | 덧날 거예요 | 덧날 것입니다 | 덧날 거야 | 덧날 것이다 |
의문Questions
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 덧나요? | 덧납니까? | 덧나? | 덧나니? |
| 과거Past | 덧났어요? | 덧났습니까? | 덧났어? | 덧났니? |
명령Commands
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 명령Do it | 덧나세요 | 덧나십시오 | 덧나 | 덧나라 |
| 청유Let's | 덧나요 | 덧납시다 | 덧나 | 덧나자 |
부정Negation
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 안Not (short) | 안 덧나요 | 안 덧납니다 | 안 덧나 | 안 덧난다 |
| -지 않다Not (long) | 덧나지 않아요 | 덧나지 않습니다 | 덧나지 않아 | 덧나지 않는다 |
| 못Cannot | 못 덧나요 | 못 덧납니다 | 못 덧나 | 못 덧난다 |
높임Honorific
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 덧나세요 | 덧나십니다 | 덧나셔 | 덧나신다 |
| 과거Past | 덧나셨어요 | 덧나셨습니다 | 덧나셨어 | 덧나셨다 |
관형사형Modifying a noun
- 현재Present
- 덧나는
- 과거Past
- 덧난
- 미래Future
- 덧날
- 회상Used to
- 덧나던
연결Joining clauses
- -고and
- 덧나고
- -게-ly / so that
- 덧나게
- -어서so / and then
- 덧나서
- -으니까since
- 덧나니까
- -으면if / when
- 덧나면
- -지만but
- 덧나지만
- -는데and / but (setting up)
- 덧나는데
- -어도even if
- 덧나도
진행In progress
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Is doing | 덧나고 있어요 | 덧나고 있습니다 | 덧나고 있어 | 덧나고 있다 |
| 과거Was doing | 덧나고 있었어요 | 덧나고 있었습니다 | 덧나고 있었어 | 덧나고 있었다 |
문형Sentence patterns
How the dictionary says this verb is used. The numbers are slots: 1 is the subject, 2 the object.
- 1이 덧나다
예문In real sentences
From the dictionary, each with its translation.
소피아 양말 하나 이상 가져다 주면 덧난대?
Would it kill her to bring me more than one pair of Sofia's socks?
이 사람처럼 잘생긴 사람을 집에 데려오면 덧나니?
He's good-looking. Why don't you ever bring home a man as good-looking as him?
도와주면 어디 덧나니
Just don't be helpless.
아래쪽에 두면 덧나?
Couldn't leave it on a bottom shelf?
자주 묻는 질문Common questions
How do you conjugate 덧나다 in Korean?
덧나다 (to get worse, to become infected) is 덧나요 in the polite 해요체, 덧납니다 in formal 합니다체, 덧나 in casual 반말 and 덧난다 in the plain written style. The past is 덧났어요.
What is the past tense of 덧나다?
덧났어요 in everyday polite speech, 덧났습니다 formally. It is built from the 아/어 form 덧나 plus ㅆ, which is why an irregular stem shows its irregularity here.
Is 덧나다 a regular verb?
Yes. Its stem never changes shape: 덧납니다, 덧나, 덧나니 all keep 덧나 intact. Only the ending moves.
What TOPIK level is 덧나다?
5급 — TOPIK 5, advanced.
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.