인증해
een-cheung-hae
injeunghae
인증하다
To say to certify politely in the present tense, use 인증해요 (een-cheung-hae-yoh) · injeunghaeyo. Below is the full conjugation of 인증하다 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
| Tense | Casual (반말) | Polite (요) | Formal (합니다) |
|---|---|---|---|
| Present | 인증해요 een-cheung-hae-yoh injeunghaeyo | 인증합니다 een-cheung-hahm-nee-dah injeunghamnida | |
| Past | 인증했어 een-cheung-hae-ssuh injeunghaesseo | 인증했어요 een-cheung-hae-ssuh-yoh injeunghaesseoyo | 인증했습니다 een-cheung-hae-sseum-nee-dah injeunghaesseumnida |
| Future | 인증할 거야 een-cheung-hahl guh-yah injeunghal geoya | 인증할 거예요 een-cheung-hahl guh-yae-yoh injeunghal geoyeyo | 인증할 겁니다 een-cheung-hahl guhm-nee-dah injeunghal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
인증하세요
een-cheung-hah-sae-yoh
injeunghaseyo
Suggestion / Let's Polite (요)
인증해요
een-cheung-hae-yoh
injeunghaeyo
Question Polite (요)
인증해요?
een-cheung-hae-yoh-?
injeunghaeyo?
Connective "and" — (고)
인증하고
een-cheung-hah-goh
injeunghago
Conditional "if" — (면)
인증하면
een-cheung-hah-myuhn
injeunghamyeon
Progressive (고 있어요)
인증하고 있어요
een-cheung-hah-goh ee-ssuh-yoh
injeunghago isseoyo
Want to (고 싶어요)
인증하고 싶어요
een-cheung-hah-goh shee-puh-yoh
injeunghago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
인증할 수 있어요
een-cheung-hahl soo ee-ssuh-yoh
injeunghal su isseoyo
Because / So (아/어서)
인증해서
een-cheung-hae-suh
injeunghaeseo
Noun form — (기)
인증하기
een-cheung-hah-gee
injeunghagi
Noun form — (음)
인증함
een-cheung-hahm
injeungham