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끓다 conjugation (kkeulda-2, to boil)

To say to boil politely in the present tense, use 끓어요 (ggeu-ruh-yoh) · kkeureoyo. Below is the full conjugation of 끓다 across the three tenses and three everyday speech levels.

Grammar note (regular): Regular verbs and adjectives conjugate predictably. Before 어-series suffixes, vowels may contract (가 + 아 → 가, 보 + 아 → 봐), but no consonant in the stem changes. If the final vowel of the stem is ㅏ or ㅗ, use 아; otherwise use 어. Consonant-final stems: 먹 + 어 → 먹어; vowel-final: 가 + 아 → 가.

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

TenseCasual (반말)Polite (요)Formal (합니다)
Present
끓어
ggeu-ruh
kkeureo
끓어요
ggeu-ruh-yoh
kkeureoyo
끓습니다
ggeul-seum-nee-dah
kkeulseumnida
Past
끓었어
ggeu-ruh-ssuh
kkeureosseo
끓었어요
ggeu-ruh-ssuh-yoh
kkeureosseoyo
끓었습니다
ggeu-ruh-sseum-nee-dah
kkeureosseumnida
Future
끓을 거야
ggeu-reul guh-yah
kkeureul geoya
끓을 거예요
ggeu-reul guh-yae-yoh
kkeureul geoyeyo
끓을 겁니다
ggeu-reul guhm-nee-dah
kkeureul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
끓으세요
ggeu-reu-sae-yoh
kkeureuseyo
Suggestion / Let's Polite (요)
끓어요
ggeu-ruh-yoh
kkeureoyo
Question Polite (요)
끓어요?
ggeu-ruh-yoh-?
kkeureoyo?
Connective "and" — (고)
끓고
ggeul-goh
kkeulgo
Conditional "if" — (면)
끓으면
ggeu-reu-myuhn
kkeureumyeon
Progressive (고 있어요)
끓고 있어요
ggeul-goh ee-ssuh-yoh
kkeulgo isseoyo
Want to (고 싶어요)
끓고 싶어요
ggeul-goh shee-puh-yoh
kkeulgo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
끓을 수 있어요
ggeu-reul soo ee-ssuh-yoh
kkeureul su isseoyo
Because / So (아/어서)
끓어서
ggeu-ruh-suh
kkeureoseo
Noun form — (기)
끓기
ggeul-gee
kkeulgi
Noun form — (음)
끓음
ggeu-reum
kkeureum