Verbseoul.
르 irregular (adj)

올바르다 conjugation (olbareuda, to be proper)

To say to be proper politely in the present tense, use 올발라요 (ohl-bahl-rah-yoh) · olbalrayo. Below is the full conjugation of 올바르다 across the three tenses and three everyday speech levels.

Grammar note (르 irregular (adj)): 르-irregular adjectives follow the same pattern as 르-irregular verbs: 르 splits before -어/-아 suffixes. 다르다 (to be different) → 달라요, 빠르다 (to be fast) → 빨라요. Before consonants 르 is unchanged: 다르고, 빠르지. See all 르-irregular verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
올발라
ohl-bahl-rah
olbalra
올발라요
ohl-bahl-rah-yoh
olbalrayo
올바릅니다
ohl-bah-reum-nee-dah
olbareumnida
Past
올발랐어
ohl-bahl-rah-ssuh
olbalrasseo
올발랐어요
ohl-bahl-rah-ssuh-yoh
olbalrasseoyo
올발랐습니다
ohl-bahl-rah-sseum-nee-dah
olbalrasseumnida
Future
올바를 거야
ohl-bah-reul guh-yah
olbareul geoya
올바를 거예요
ohl-bah-reul guh-yae-yoh
olbareul geoyeyo
올바를 겁니다
ohl-bah-reul guhm-nee-dah
olbareul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
올바르세요
ohl-bah-reu-sae-yoh
olbareuseyo
Suggestion / Let's Polite (요)
올발라요
ohl-bahl-rah-yoh
olbalrayo
Question Polite (요)
올발라요?
ohl-bahl-rah-yoh-?
olbalrayo?
Connective "and" — (고)
올바르고
ohl-bah-reu-goh
olbareugo
Conditional "if" — (면)
올바르면
ohl-bah-reu-myuhn
olbareumyeon
Progressive (고 있어요)
올바르고 있어요
ohl-bah-reu-goh ee-ssuh-yoh
olbareugo isseoyo
Want to (고 싶어요)
올바르고 싶어요
ohl-bah-reu-goh shee-puh-yoh
olbareugo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
올바를 수 있어요
ohl-bah-reul soo ee-ssuh-yoh
olbareul su isseoyo
Because / So (아/어서)
올발라서
ohl-bahl-rah-suh
olbalraseo
Noun form — (기)
올바르기
ohl-bah-reu-gee
olbareugi
Noun form — (음)
올바름
ohl-bah-reum
olbareum