개사해
gae-sah-hae
gaesahae
개사하다
To say to change lyrics politely in the present tense, use 개사해요 (gae-sah-hae-yoh) · gaesahaeyo. Below is the full conjugation of 개사하다 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 | 개사해요 gae-sah-hae-yoh gaesahaeyo | 개사합니다 gae-sah-hahm-nee-dah gaesahamnida | |
| Past | 개사했어 gae-sah-hae-ssuh gaesahaesseo | 개사했어요 gae-sah-hae-ssuh-yoh gaesahaesseoyo | 개사했습니다 gae-sah-hae-sseum-nee-dah gaesahaesseumnida |
| Future | 개사할 거야 gae-sah-hahl guh-yah gaesahal geoya | 개사할 거예요 gae-sah-hahl guh-yae-yoh gaesahal geoyeyo | 개사할 겁니다 gae-sah-hahl guhm-nee-dah gaesahal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
개사하세요
gae-sah-hah-sae-yoh
gaesahaseyo
Suggestion / Let's Polite (요)
개사해요
gae-sah-hae-yoh
gaesahaeyo
Question Polite (요)
개사해요?
gae-sah-hae-yoh-?
gaesahaeyo?
Connective "and" — (고)
개사하고
gae-sah-hah-goh
gaesahago
Conditional "if" — (면)
개사하면
gae-sah-hah-myuhn
gaesahamyeon
Progressive (고 있어요)
개사하고 있어요
gae-sah-hah-goh ee-ssuh-yoh
gaesahago isseoyo
Want to (고 싶어요)
개사하고 싶어요
gae-sah-hah-goh shee-puh-yoh
gaesahago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
개사할 수 있어요
gae-sah-hahl soo ee-ssuh-yoh
gaesahal su isseoyo
Because / So (아/어서)
개사해서
gae-sah-hae-suh
gaesahaeseo
Noun form — (기)
개사하기
gae-sah-hah-gee
gaesahagi
Noun form — (음)
개사함
gae-sah-hahm
gaesaham