Verbseoul.
하다 verb

설득하다 conjugation (seoldeukhada, to persuade)

To say to persuade politely in the present tense, use 설득해요 (suhl-deu-kae-yoh) · seoldeukaeyo. Below is the full conjugation of 설득하다 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
설득해
suhl-deu-kae
seoldeukae
설득해요
suhl-deu-kae-yoh
seoldeukaeyo
설득합니다
suhl-deu-kahm-nee-dah
seoldeukamnida
Past
설득했어
suhl-deu-kae-ssuh
seoldeukaesseo
설득했어요
suhl-deu-kae-ssuh-yoh
seoldeukaesseoyo
설득했습니다
suhl-deu-kae-sseum-nee-dah
seoldeukaesseumnida
Future
설득할 거야
suhl-deu-kahl guh-yah
seoldeukal geoya
설득할 거예요
suhl-deu-kahl guh-yae-yoh
seoldeukal geoyeyo
설득할 겁니다
suhl-deu-kahl guhm-nee-dah
seoldeukal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
설득하세요
suhl-deu-kah-sae-yoh
seoldeukaseyo
Suggestion / Let's Polite (요)
설득해요
suhl-deu-kae-yoh
seoldeukaeyo
Question Polite (요)
설득해요?
suhl-deu-kae-yoh-?
seoldeukaeyo?
Connective "and" — (고)
설득하고
suhl-deu-kah-goh
seoldeukago
Conditional "if" — (면)
설득하면
suhl-deu-kah-myuhn
seoldeukamyeon
Progressive (고 있어요)
설득하고 있어요
suhl-deu-kah-goh ee-ssuh-yoh
seoldeukago isseoyo
Want to (고 싶어요)
설득하고 싶어요
suhl-deu-kah-goh shee-puh-yoh
seoldeukago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
설득할 수 있어요
suhl-deu-kahl soo ee-ssuh-yoh
seoldeukal su isseoyo
Because / So (아/어서)
설득해서
suhl-deu-kae-suh
seoldeukaeseo
Noun form — (기)
설득하기
suhl-deu-kah-gee
seoldeukagi
Noun form — (음)
설득함
suhl-deu-kahm
seoldeukam