Verbseoul.
하다 verb
분별하다bunbyeolhadato distinguish

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

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
분별해
boon-byuhl-hae
분별해요
boon-byuhl-hae-yoh
분별합니다
boon-byuhl-hahm-nee-dah
Past
분별했어
boon-byuhl-hae-ssuh
분별했어요
boon-byuhl-hae-ssuh-yoh
분별했습니다
boon-byuhl-hae-sseum-nee-dah
Future
분별할 거야
boon-byuhl-hahl- -guh-yah
분별할 거예요
boon-byuhl-hahl- -guh-yae-yoh
분별할 겁니다
boon-byuhl-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
분별하세요
boon-byuhl-hah-sae-yoh
Suggestion / Let's Polite (요)
분별해요
boon-byuhl-hae-yoh
Question Polite (요)
분별해요?
boon-byuhl-hae-yoh-?
Connective “and” — (고)
분별하고
boon-byuhl-hah-goh
Conditional “if” — (면)
분별하면
boon-byuhl-hah-myuhn
Noun form — (기)
분별함
boon-byuhl-hahm