가해
gah-hae
gahae
가하다
To say to add politely in the present tense, use 가해요 (gah-hae-yoh) · gahaeyo. Below is the full conjugation of 가하다 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 | 가해요 gah-hae-yoh gahaeyo | 가합니다 gah-hahm-nee-dah gahamnida | |
| Past | 가했어 gah-hae-ssuh gahaesseo | 가했어요 gah-hae-ssuh-yoh gahaesseoyo | 가했습니다 gah-hae-sseum-nee-dah gahaesseumnida |
| Future | 가할 거야 gah-hahl guh-yah gahal geoya | 가할 거예요 gah-hahl guh-yae-yoh gahal geoyeyo | 가할 겁니다 gah-hahl guhm-nee-dah gahal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
가하세요
gah-hah-sae-yoh
gahaseyo
Suggestion / Let's Polite (요)
가해요
gah-hae-yoh
gahaeyo
Question Polite (요)
가해요?
gah-hae-yoh-?
gahaeyo?
Connective "and" — (고)
가하고
gah-hah-goh
gahago
Conditional "if" — (면)
가하면
gah-hah-myuhn
gahamyeon
Progressive (고 있어요)
가하고 있어요
gah-hah-goh ee-ssuh-yoh
gahago isseoyo
Want to (고 싶어요)
가하고 싶어요
gah-hah-goh shee-puh-yoh
gahago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
가할 수 있어요
gah-hahl soo ee-ssuh-yoh
gahal su isseoyo
Because / So (아/어서)
가해서
gah-hae-suh
gahaeseo
Noun form — (기)
가하기
gah-hah-gee
gahagi
Noun form — (음)
가함
gah-hahm
gaham