Verbseoul.
하다 verb

위협하다 conjugation (wihyeophada, to threaten, to menace)

To say to threaten, to menace politely in the present tense, use 위협해요 (wee-hyuh-pae-yoh) · wihyeopaeyo. Below is the full conjugation of 위협하다 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
위협해
wee-hyuh-pae
wihyeopae
위협해요
wee-hyuh-pae-yoh
wihyeopaeyo
위협합니다
wee-hyuh-pahm-nee-dah
wihyeopamnida
Past
위협했어
wee-hyuh-pae-ssuh
wihyeopaesseo
위협했어요
wee-hyuh-pae-ssuh-yoh
wihyeopaesseoyo
위협했습니다
wee-hyuh-pae-sseum-nee-dah
wihyeopaesseumnida
Future
위협할 거야
wee-hyuh-pahl guh-yah
wihyeopal geoya
위협할 거예요
wee-hyuh-pahl guh-yae-yoh
wihyeopal geoyeyo
위협할 겁니다
wee-hyuh-pahl guhm-nee-dah
wihyeopal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
위협하세요
wee-hyuh-pah-sae-yoh
wihyeopaseyo
Suggestion / Let's Polite (요)
위협해요
wee-hyuh-pae-yoh
wihyeopaeyo
Question Polite (요)
위협해요?
wee-hyuh-pae-yoh-?
wihyeopaeyo?
Connective "and" — (고)
위협하고
wee-hyuh-pah-goh
wihyeopago
Conditional "if" — (면)
위협하면
wee-hyuh-pah-myuhn
wihyeopamyeon
Progressive (고 있어요)
위협하고 있어요
wee-hyuh-pah-goh ee-ssuh-yoh
wihyeopago isseoyo
Want to (고 싶어요)
위협하고 싶어요
wee-hyuh-pah-goh shee-puh-yoh
wihyeopago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
위협할 수 있어요
wee-hyuh-pahl soo ee-ssuh-yoh
wihyeopal su isseoyo
Because / So (아/어서)
위협해서
wee-hyuh-pae-suh
wihyeopaeseo
Noun form — (기)
위협하기
wee-hyuh-pah-gee
wihyeopagi
Noun form — (음)
위협함
wee-hyuh-pahm
wihyeopam