개척해
gae-chuh-kae
gaecheokae
개척하다
To say to reclaim, to cultivate, to develop politely in the present tense, use 개척해요 (gae-chuh-kae-yoh) · gaecheokaeyo. Below is the full conjugation of 개척하다 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 | 개척해요 gae-chuh-kae-yoh gaecheokaeyo | 개척합니다 gae-chuh-kahm-nee-dah gaecheokamnida | |
| Past | 개척했어 gae-chuh-kae-ssuh gaecheokaesseo | 개척했어요 gae-chuh-kae-ssuh-yoh gaecheokaesseoyo | 개척했습니다 gae-chuh-kae-sseum-nee-dah gaecheokaesseumnida |
| Future | 개척할 거야 gae-chuh-kahl guh-yah gaecheokal geoya | 개척할 거예요 gae-chuh-kahl guh-yae-yoh gaecheokal geoyeyo | 개척할 겁니다 gae-chuh-kahl guhm-nee-dah gaecheokal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
개척하세요
gae-chuh-kah-sae-yoh
gaecheokaseyo
Suggestion / Let's Polite (요)
개척해요
gae-chuh-kae-yoh
gaecheokaeyo
Question Polite (요)
개척해요?
gae-chuh-kae-yoh-?
gaecheokaeyo?
Connective "and" — (고)
개척하고
gae-chuh-kah-goh
gaecheokago
Conditional "if" — (면)
개척하면
gae-chuh-kah-myuhn
gaecheokamyeon
Progressive (고 있어요)
개척하고 있어요
gae-chuh-kah-goh ee-ssuh-yoh
gaecheokago isseoyo
Want to (고 싶어요)
개척하고 싶어요
gae-chuh-kah-goh shee-puh-yoh
gaecheokago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
개척할 수 있어요
gae-chuh-kahl soo ee-ssuh-yoh
gaecheokal su isseoyo
Because / So (아/어서)
개척해서
gae-chuh-kae-suh
gaecheokaeseo
Noun form — (기)
개척하기
gae-chuh-kah-gee
gaecheokagi
Noun form — (음)
개척함
gae-chuh-kahm
gaecheokam