Verbseoul.
하다 verb

근절하다 conjugation (geunjeolhada, eradicate)

To say eradicate politely in the present tense, use 근절해요 (geun-chuhl-hae-yoh) · geunjeolhaeyo. Below is the full conjugation of 근절하다 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
근절해
geun-chuhl-hae
geunjeolhae
근절해요
geun-chuhl-hae-yoh
geunjeolhaeyo
근절합니다
geun-chuhl-hahm-nee-dah
geunjeolhamnida
Past
근절했어
geun-chuhl-hae-ssuh
geunjeolhaesseo
근절했어요
geun-chuhl-hae-ssuh-yoh
geunjeolhaesseoyo
근절했습니다
geun-chuhl-hae-sseum-nee-dah
geunjeolhaesseumnida
Future
근절할 거야
geun-chuhl-hahl guh-yah
geunjeolhal geoya
근절할 거예요
geun-chuhl-hahl guh-yae-yoh
geunjeolhal geoyeyo
근절할 겁니다
geun-chuhl-hahl guhm-nee-dah
geunjeolhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
근절하세요
geun-chuhl-hah-sae-yoh
geunjeolhaseyo
Suggestion / Let's Polite (요)
근절해요
geun-chuhl-hae-yoh
geunjeolhaeyo
Question Polite (요)
근절해요?
geun-chuhl-hae-yoh-?
geunjeolhaeyo?
Connective "and" — (고)
근절하고
geun-chuhl-hah-goh
geunjeolhago
Conditional "if" — (면)
근절하면
geun-chuhl-hah-myuhn
geunjeolhamyeon
Progressive (고 있어요)
근절하고 있어요
geun-chuhl-hah-goh ee-ssuh-yoh
geunjeolhago isseoyo
Want to (고 싶어요)
근절하고 싶어요
geun-chuhl-hah-goh shee-puh-yoh
geunjeolhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
근절할 수 있어요
geun-chuhl-hahl soo ee-ssuh-yoh
geunjeolhal su isseoyo
Because / So (아/어서)
근절해서
geun-chuhl-hae-suh
geunjeolhaeseo
Noun form — (기)
근절하기
geun-chuhl-hah-gee
geunjeolhagi
Noun form — (음)
근절함
geun-chuhl-hahm
geunjeolham