Verbseoul.
하다 verb

건축하다 conjugation (geonchukhada, to construct)

To say to construct politely in the present tense, use 건축해요 (guhn-choo-kae-yoh) · geonchukaeyo. Below is the full conjugation of 건축하다 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
건축해
guhn-choo-kae
geonchukae
건축해요
guhn-choo-kae-yoh
geonchukaeyo
건축합니다
guhn-choo-kahm-nee-dah
geonchukamnida
Past
건축했어
guhn-choo-kae-ssuh
geonchukaesseo
건축했어요
guhn-choo-kae-ssuh-yoh
geonchukaesseoyo
건축했습니다
guhn-choo-kae-sseum-nee-dah
geonchukaesseumnida
Future
건축할 거야
guhn-choo-kahl guh-yah
geonchukal geoya
건축할 거예요
guhn-choo-kahl guh-yae-yoh
geonchukal geoyeyo
건축할 겁니다
guhn-choo-kahl guhm-nee-dah
geonchukal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
건축하세요
guhn-choo-kah-sae-yoh
geonchukaseyo
Suggestion / Let's Polite (요)
건축해요
guhn-choo-kae-yoh
geonchukaeyo
Question Polite (요)
건축해요?
guhn-choo-kae-yoh-?
geonchukaeyo?
Connective "and" — (고)
건축하고
guhn-choo-kah-goh
geonchukago
Conditional "if" — (면)
건축하면
guhn-choo-kah-myuhn
geonchukamyeon
Progressive (고 있어요)
건축하고 있어요
guhn-choo-kah-goh ee-ssuh-yoh
geonchukago isseoyo
Want to (고 싶어요)
건축하고 싶어요
guhn-choo-kah-goh shee-puh-yoh
geonchukago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
건축할 수 있어요
guhn-choo-kahl soo ee-ssuh-yoh
geonchukal su isseoyo
Because / So (아/어서)
건축해서
guhn-choo-kae-suh
geonchukaeseo
Noun form — (기)
건축하기
guhn-choo-kah-gee
geonchukagi
Noun form — (음)
건축함
guhn-choo-kahm
geonchukam