Verbseoul.
하다 verb

기업하다 conjugation (gieophada, to do business)

To say to do business politely in the present tense, use 기업해요 (gee-uh-pae-yoh) · gieopaeyo. Below is the full conjugation of 기업하다 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
기업해
gee-uh-pae
gieopae
기업해요
gee-uh-pae-yoh
gieopaeyo
기업합니다
gee-uh-pahm-nee-dah
gieopamnida
Past
기업했어
gee-uh-pae-ssuh
gieopaesseo
기업했어요
gee-uh-pae-ssuh-yoh
gieopaesseoyo
기업했습니다
gee-uh-pae-sseum-nee-dah
gieopaesseumnida
Future
기업할 거야
gee-uh-pahl guh-yah
gieopal geoya
기업할 거예요
gee-uh-pahl guh-yae-yoh
gieopal geoyeyo
기업할 겁니다
gee-uh-pahl guhm-nee-dah
gieopal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
기업하세요
gee-uh-pah-sae-yoh
gieopaseyo
Suggestion / Let's Polite (요)
기업해요
gee-uh-pae-yoh
gieopaeyo
Question Polite (요)
기업해요?
gee-uh-pae-yoh-?
gieopaeyo?
Connective "and" — (고)
기업하고
gee-uh-pah-goh
gieopago
Conditional "if" — (면)
기업하면
gee-uh-pah-myuhn
gieopamyeon
Progressive (고 있어요)
기업하고 있어요
gee-uh-pah-goh ee-ssuh-yoh
gieopago isseoyo
Want to (고 싶어요)
기업하고 싶어요
gee-uh-pah-goh shee-puh-yoh
gieopago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
기업할 수 있어요
gee-uh-pahl soo ee-ssuh-yoh
gieopal su isseoyo
Because / So (아/어서)
기업해서
gee-uh-pae-suh
gieopaeseo
Noun form — (기)
기업하기
gee-uh-pah-gee
gieopagi
Noun form — (음)
기업함
gee-uh-pahm
gieopam