Verbseoul.
하다 verb

공개하다 conjugation (gonggaehada, to make something or someone noticeable to the public)

To say to make something or someone noticeable to the public politely in the present tense, use 공개해요 (gohng-gae-hae-yoh) · gonggaehaeyo. Below is the full conjugation of 공개하다 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
공개해
gohng-gae-hae
gonggaehae
공개해요
gohng-gae-hae-yoh
gonggaehaeyo
공개합니다
gohng-gae-hahm-nee-dah
gonggaehamnida
Past
공개했어
gohng-gae-hae-ssuh
gonggaehaesseo
공개했어요
gohng-gae-hae-ssuh-yoh
gonggaehaesseoyo
공개했습니다
gohng-gae-hae-sseum-nee-dah
gonggaehaesseumnida
Future
공개할 거야
gohng-gae-hahl guh-yah
gonggaehal geoya
공개할 거예요
gohng-gae-hahl guh-yae-yoh
gonggaehal geoyeyo
공개할 겁니다
gohng-gae-hahl guhm-nee-dah
gonggaehal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
공개하세요
gohng-gae-hah-sae-yoh
gonggaehaseyo
Suggestion / Let's Polite (요)
공개해요
gohng-gae-hae-yoh
gonggaehaeyo
Question Polite (요)
공개해요?
gohng-gae-hae-yoh-?
gonggaehaeyo?
Connective "and" — (고)
공개하고
gohng-gae-hah-goh
gonggaehago
Conditional "if" — (면)
공개하면
gohng-gae-hah-myuhn
gonggaehamyeon
Progressive (고 있어요)
공개하고 있어요
gohng-gae-hah-goh ee-ssuh-yoh
gonggaehago isseoyo
Want to (고 싶어요)
공개하고 싶어요
gohng-gae-hah-goh shee-puh-yoh
gonggaehago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
공개할 수 있어요
gohng-gae-hahl soo ee-ssuh-yoh
gonggaehal su isseoyo
Because / So (아/어서)
공개해서
gohng-gae-hae-suh
gonggaehaeseo
Noun form — (기)
공개하기
gohng-gae-hah-gee
gonggaehagi
Noun form — (음)
공개함
gohng-gae-hahm
gonggaeham