Verbseoul.
하다 verb (adj)

완고하다 conjugation (wangohada, stubborn)

To say stubborn politely in the present tense, use 완고해요 (wahn-goh-hae-yoh) · wangohaeyo. Below is the full conjugation of 완고하다 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
완고해
wahn-goh-hae
wangohae
완고해요
wahn-goh-hae-yoh
wangohaeyo
완고합니다
wahn-goh-hahm-nee-dah
wangohamnida
Past
완고했어
wahn-goh-hae-ssuh
wangohaesseo
완고했어요
wahn-goh-hae-ssuh-yoh
wangohaesseoyo
완고했습니다
wahn-goh-hae-sseum-nee-dah
wangohaesseumnida
Future
완고할 거야
wahn-goh-hahl guh-yah
wangohal geoya
완고할 거예요
wahn-goh-hahl guh-yae-yoh
wangohal geoyeyo
완고할 겁니다
wahn-goh-hahl guhm-nee-dah
wangohal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
완고하세요
wahn-goh-hah-sae-yoh
wangohaseyo
Suggestion / Let's Polite (요)
완고해요
wahn-goh-hae-yoh
wangohaeyo
Question Polite (요)
완고해요?
wahn-goh-hae-yoh-?
wangohaeyo?
Connective "and" — (고)
완고하고
wahn-goh-hah-goh
wangohago
Conditional "if" — (면)
완고하면
wahn-goh-hah-myuhn
wangohamyeon
Progressive (고 있어요)
완고하고 있어요
wahn-goh-hah-goh ee-ssuh-yoh
wangohago isseoyo
Want to (고 싶어요)
완고하고 싶어요
wahn-goh-hah-goh shee-puh-yoh
wangohago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
완고할 수 있어요
wahn-goh-hahl soo ee-ssuh-yoh
wangohal su isseoyo
Because / So (아/어서)
완고해서
wahn-goh-hae-suh
wangohaeseo
Noun form — (기)
완고하기
wahn-goh-hah-gee
wangohagi
Noun form — (음)
완고함
wahn-goh-hahm
wangoham