Verbseoul.
하다 verb

공갈하다 conjugation (gonggalhada, to threaten)

To say to threaten politely in the present tense, use 공갈해요 (gohng-gahl-hae-yoh) · gonggalhaeyo. Below is the full conjugation of 공갈하다 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
공갈해
gohng-gahl-hae
gonggalhae
공갈해요
gohng-gahl-hae-yoh
gonggalhaeyo
공갈합니다
gohng-gahl-hahm-nee-dah
gonggalhamnida
Past
공갈했어
gohng-gahl-hae-ssuh
gonggalhaesseo
공갈했어요
gohng-gahl-hae-ssuh-yoh
gonggalhaesseoyo
공갈했습니다
gohng-gahl-hae-sseum-nee-dah
gonggalhaesseumnida
Future
공갈할 거야
gohng-gahl-hahl guh-yah
gonggalhal geoya
공갈할 거예요
gohng-gahl-hahl guh-yae-yoh
gonggalhal geoyeyo
공갈할 겁니다
gohng-gahl-hahl guhm-nee-dah
gonggalhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
공갈하세요
gohng-gahl-hah-sae-yoh
gonggalhaseyo
Suggestion / Let's Polite (요)
공갈해요
gohng-gahl-hae-yoh
gonggalhaeyo
Question Polite (요)
공갈해요?
gohng-gahl-hae-yoh-?
gonggalhaeyo?
Connective "and" — (고)
공갈하고
gohng-gahl-hah-goh
gonggalhago
Conditional "if" — (면)
공갈하면
gohng-gahl-hah-myuhn
gonggalhamyeon
Progressive (고 있어요)
공갈하고 있어요
gohng-gahl-hah-goh ee-ssuh-yoh
gonggalhago isseoyo
Want to (고 싶어요)
공갈하고 싶어요
gohng-gahl-hah-goh shee-puh-yoh
gonggalhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
공갈할 수 있어요
gohng-gahl-hahl soo ee-ssuh-yoh
gonggalhal su isseoyo
Because / So (아/어서)
공갈해서
gohng-gahl-hae-suh
gonggalhaeseo
Noun form — (기)
공갈하기
gohng-gahl-hah-gee
gonggalhagi
Noun form — (음)
공갈함
gohng-gahl-hahm
gonggalham