Verbseoul.
하다 verb

분별하다 conjugation (bunbyeolhada, to distinguish)

To say to distinguish politely in the present tense, use 분별해요 (boon-byuhl-hae-yoh) · bunbyeolhaeyo. Below is the full conjugation of 분별하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb): 하다 verbs are formed with a Sino-Korean noun + 하다 (e.g. 공부하다 = study + do). 하다 conjugates irregularly: the ㅏ in 하 contracts with the -아/-어 suffix to give 해 (not *하어). Present polite: 해요; past polite: 했어요. The formal ending is 합니다 (not *하습니다). Most noun+하다 compounds follow this pattern uniformly. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
분별해
boon-byuhl-hae
bunbyeolhae
분별해요
boon-byuhl-hae-yoh
bunbyeolhaeyo
분별합니다
boon-byuhl-hahm-nee-dah
bunbyeolhamnida
Past
분별했어
boon-byuhl-hae-ssuh
bunbyeolhaesseo
분별했어요
boon-byuhl-hae-ssuh-yoh
bunbyeolhaesseoyo
분별했습니다
boon-byuhl-hae-sseum-nee-dah
bunbyeolhaesseumnida
Future
분별할 거야
boon-byuhl-hahl guh-yah
bunbyeolhal geoya
분별할 거예요
boon-byuhl-hahl guh-yae-yoh
bunbyeolhal geoyeyo
분별할 겁니다
boon-byuhl-hahl guhm-nee-dah
bunbyeolhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
분별하세요
boon-byuhl-hah-sae-yoh
bunbyeolhaseyo
Suggestion / Let's Polite (요)
분별해요
boon-byuhl-hae-yoh
bunbyeolhaeyo
Question Polite (요)
분별해요?
boon-byuhl-hae-yoh-?
bunbyeolhaeyo?
Connective "and" — (고)
분별하고
boon-byuhl-hah-goh
bunbyeolhago
Conditional "if" — (면)
분별하면
boon-byuhl-hah-myuhn
bunbyeolhamyeon
Progressive (고 있어요)
분별하고 있어요
boon-byuhl-hah-goh ee-ssuh-yoh
bunbyeolhago isseoyo
Want to (고 싶어요)
분별하고 싶어요
boon-byuhl-hah-goh shee-puh-yoh
bunbyeolhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
분별할 수 있어요
boon-byuhl-hahl soo ee-ssuh-yoh
bunbyeolhal su isseoyo
Because / So (아/어서)
분별해서
boon-byuhl-hae-suh
bunbyeolhaeseo
Noun form — (기)
분별하기
boon-byuhl-hah-gee
bunbyeolhagi
Noun form — (음)
분별함
boon-byuhl-hahm
bunbyeolham