고해
goh-hae
gohae
고하다
To say to inform, to tell politely in the present tense, use 고해요 (goh-hae-yoh) · gohaeyo. Below is the full conjugation of 고하다 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 | 고해요 goh-hae-yoh gohaeyo | 고합니다 goh-hahm-nee-dah gohamnida | |
| Past | 고했어 goh-hae-ssuh gohaesseo | 고했어요 goh-hae-ssuh-yoh gohaesseoyo | 고했습니다 goh-hae-sseum-nee-dah gohaesseumnida |
| Future | 고할 거야 goh-hahl guh-yah gohal geoya | 고할 거예요 goh-hahl guh-yae-yoh gohal geoyeyo | 고할 겁니다 goh-hahl guhm-nee-dah gohal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
고하세요
goh-hah-sae-yoh
gohaseyo
Suggestion / Let's Polite (요)
고해요
goh-hae-yoh
gohaeyo
Question Polite (요)
고해요?
goh-hae-yoh-?
gohaeyo?
Connective "and" — (고)
고하고
goh-hah-goh
gohago
Conditional "if" — (면)
고하면
goh-hah-myuhn
gohamyeon
Progressive (고 있어요)
고하고 있어요
goh-hah-goh ee-ssuh-yoh
gohago isseoyo
Want to (고 싶어요)
고하고 싶어요
goh-hah-goh shee-puh-yoh
gohago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
고할 수 있어요
goh-hahl soo ee-ssuh-yoh
gohal su isseoyo
Because / So (아/어서)
고해서
goh-hae-suh
gohaeseo
Noun form — (기)
고하기
goh-hah-gee
gohagi
Noun form — (음)
고함
goh-hahm
goham