Verbseoul.
하다 verb (adj)

위험하다 conjugation (wiheomhada, dangerous)

To say dangerous politely in the present tense, use 위험해요 (wee-huhm-hae-yoh) · wiheomhaeyo. Below is the full conjugation of 위험하다 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
위험해
wee-huhm-hae
wiheomhae
위험해요
wee-huhm-hae-yoh
wiheomhaeyo
위험합니다
wee-huhm-hahm-nee-dah
wiheomhamnida
Past
위험했어
wee-huhm-hae-ssuh
wiheomhaesseo
위험했어요
wee-huhm-hae-ssuh-yoh
wiheomhaesseoyo
위험했습니다
wee-huhm-hae-sseum-nee-dah
wiheomhaesseumnida
Future
위험할 거야
wee-huhm-hahl guh-yah
wiheomhal geoya
위험할 거예요
wee-huhm-hahl guh-yae-yoh
wiheomhal geoyeyo
위험할 겁니다
wee-huhm-hahl guhm-nee-dah
wiheomhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
위험하세요
wee-huhm-hah-sae-yoh
wiheomhaseyo
Suggestion / Let's Polite (요)
위험해요
wee-huhm-hae-yoh
wiheomhaeyo
Question Polite (요)
위험해요?
wee-huhm-hae-yoh-?
wiheomhaeyo?
Connective "and" — (고)
위험하고
wee-huhm-hah-goh
wiheomhago
Conditional "if" — (면)
위험하면
wee-huhm-hah-myuhn
wiheomhamyeon
Progressive (고 있어요)
위험하고 있어요
wee-huhm-hah-goh ee-ssuh-yoh
wiheomhago isseoyo
Want to (고 싶어요)
위험하고 싶어요
wee-huhm-hah-goh shee-puh-yoh
wiheomhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
위험할 수 있어요
wee-huhm-hahl soo ee-ssuh-yoh
wiheomhal su isseoyo
Because / So (아/어서)
위험해서
wee-huhm-hae-suh
wiheomhaeseo
Noun form — (기)
위험하기
wee-huhm-hah-gee
wiheomhagi
Noun form — (음)
위험함
wee-huhm-hahm
wiheomham