기초해
gee-choh-hae
gichohae
기초하다
To say to be based on politely in the present tense, use 기초해요 (gee-choh-hae-yoh) · gichohaeyo. Below is the full conjugation of 기초하다 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 | 기초해요 gee-choh-hae-yoh gichohaeyo | 기초합니다 gee-choh-hahm-nee-dah gichohamnida | |
| Past | 기초했어 gee-choh-hae-ssuh gichohaesseo | 기초했어요 gee-choh-hae-ssuh-yoh gichohaesseoyo | 기초했습니다 gee-choh-hae-sseum-nee-dah gichohaesseumnida |
| Future | 기초할 거야 gee-choh-hahl guh-yah gichohal geoya | 기초할 거예요 gee-choh-hahl guh-yae-yoh gichohal geoyeyo | 기초할 겁니다 gee-choh-hahl guhm-nee-dah gichohal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
기초하세요
gee-choh-hah-sae-yoh
gichohaseyo
Suggestion / Let's Polite (요)
기초해요
gee-choh-hae-yoh
gichohaeyo
Question Polite (요)
기초해요?
gee-choh-hae-yoh-?
gichohaeyo?
Connective "and" — (고)
기초하고
gee-choh-hah-goh
gichohago
Conditional "if" — (면)
기초하면
gee-choh-hah-myuhn
gichohamyeon
Progressive (고 있어요)
기초하고 있어요
gee-choh-hah-goh ee-ssuh-yoh
gichohago isseoyo
Want to (고 싶어요)
기초하고 싶어요
gee-choh-hah-goh shee-puh-yoh
gichohago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
기초할 수 있어요
gee-choh-hahl soo ee-ssuh-yoh
gichohal su isseoyo
Because / So (아/어서)
기초해서
gee-choh-hae-suh
gichohaeseo
Noun form — (기)
기초하기
gee-choh-hah-gee
gichohagi
Noun form — (음)
기초함
gee-choh-hahm
gichoham