더럽다 conjugation

to be dirty · ㅂ irregular · TOPIK I · Adjective

Common mistakes

Final ㅂ becomes 우 before a vowel: 춥다 → 추워요. 돕다 and 곱다 take 오: 도와요.

~~더럽어요~~ → 더러워요 Polite present
~~더럽었어요~~ → 더러웠어요 Polite past
~~더럽었습니다~~ → 더러웠습니다 Formal past
~~더럽어~~ → 더러워 Casual

Core forms

Polite present-아/어요	더러워요not: ~~더럽어요~~
Polite past-았/었어요	더러웠어요not: ~~더럽었어요~~
Polite negative-지 않아요	더럽지 않아요
Formal present-(스)ㅂ니다	더럽습니다
Formal past-았/었습니다	더러웠습니다not: ~~더럽었습니다~~
Casual-아/어	더러워not: ~~더럽어~~
Plain, written-ㄴ/는다	더럽다
And, linking-고	더럽고

Advanced forms

If-(으)면	더러우면not: ~~더럽으면~~
Future, intention-(으)ㄹ 거예요	더러울 거예요not: ~~더럽을 거예요~~
Because-아/어서	더러워서not: ~~더럽어서~~
Modifier-는 / -(으)ㄴ	더러운not: ~~더럽은~~

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