Verbseoul.
하다 verb (adj)

험악하다 conjugation (heomakhada, dangerous, perilous)

To say dangerous, perilous politely in the present tense, use 험악해요 (huh-mah-kae-yoh) · heomakaeyo. Below is the full conjugation of 험악하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb (adj)): 하다 adjectives use the same verb 하다 as a suffix to turn descriptive nouns into predicates (행복하다 = to be happy). They conjugate identically to 하다 verbs: the 하 contracts before -아/-어 suffixes to give 해. 행복해요, 행복했어요, 행복합니다. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
험악해
huh-mah-kae
heomakae
험악해요
huh-mah-kae-yoh
heomakaeyo
험악합니다
huh-mah-kahm-nee-dah
heomakamnida
Past
험악했어
huh-mah-kae-ssuh
heomakaesseo
험악했어요
huh-mah-kae-ssuh-yoh
heomakaesseoyo
험악했습니다
huh-mah-kae-sseum-nee-dah
heomakaesseumnida
Future
험악할 거야
huh-mah-kahl guh-yah
heomakal geoya
험악할 거예요
huh-mah-kahl guh-yae-yoh
heomakal geoyeyo
험악할 겁니다
huh-mah-kahl guhm-nee-dah
heomakal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
험악하세요
huh-mah-kah-sae-yoh
heomakaseyo
Suggestion / Let's Polite (요)
험악해요
huh-mah-kae-yoh
heomakaeyo
Question Polite (요)
험악해요?
huh-mah-kae-yoh-?
heomakaeyo?
Connective "and" — (고)
험악하고
huh-mah-kah-goh
heomakago
Conditional "if" — (면)
험악하면
huh-mah-kah-myuhn
heomakamyeon
Progressive (고 있어요)
험악하고 있어요
huh-mah-kah-goh ee-ssuh-yoh
heomakago isseoyo
Want to (고 싶어요)
험악하고 싶어요
huh-mah-kah-goh shee-puh-yoh
heomakago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
험악할 수 있어요
huh-mah-kahl soo ee-ssuh-yoh
heomakal su isseoyo
Because / So (아/어서)
험악해서
huh-mah-kae-suh
heomakaeseo
Noun form — (기)
험악하기
huh-mah-kah-gee
heomakagi
Noun form — (음)
험악함
huh-mah-kahm
heomakam