Verbseoul.
ㄹ stem

불다 conjugation (bulda, to blow)

To say to blow politely in the present tense, use 불어요 (boo-ruh-yoh) · bureoyo. Below is the full conjugation of 불다 across the three tenses and three everyday speech levels.

Grammar note (ㄹ stem): ㄹ-stem verbs end in ㄹ as the final consonant. They are conjugated regularly with vowel suffixes (살다 → 살아요), but the ㄹ drops before certain consonant suffixes — specifically before ㄴ, ㅂ, ㅅ, and before the formal ending 습니다: 살다 → 사는, 삽니다, 살지 (ㄹ kept before ㅈ). This is sometimes called a "ㄹ drop" or "ㄹ irregular." See all ㄹ-stem verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
불어
boo-ruh
bureo
불어요
boo-ruh-yoh
bureoyo
붑니다
boom-nee-dah
bumnida
Past
불었어
boo-ruh-ssuh
bureosseo
불었어요
boo-ruh-ssuh-yoh
bureosseoyo
불었습니다
boo-ruh-sseum-nee-dah
bureosseumnida
Future
불 거야
bool guh-yah
bul geoya
불 거예요
bool guh-yae-yoh
bul geoyeyo
불 겁니다
bool guhm-nee-dah
bul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
부세요
boo-sae-yoh
buseyo
Suggestion / Let's Polite (요)
불어요
boo-ruh-yoh
bureoyo
Question Polite (요)
불어요?
boo-ruh-yoh-?
bureoyo?
Connective "and" — (고)
불고
bool-goh
bulgo
Conditional "if" — (면)
불면
bool-myuhn
bulmyeon
Progressive (고 있어요)
불고 있어요
bool-goh ee-ssuh-yoh
bulgo isseoyo
Want to (고 싶어요)
불고 싶어요
bool-goh shee-puh-yoh
bulgo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
불 수 있어요
bool soo ee-ssuh-yoh
bul su isseoyo
Because / So (아/어서)
불어서
boo-ruh-suh
bureoseo
Noun form — (기)
불기
bool-gee
bulgi
Noun form — (음)
붊
boom
bum