발달해
bahl-dahl-hae
baldalhae
발달하다
To say to develop, to improve politely in the present tense, use 발달해요 (bahl-dahl-hae-yoh) · baldalhaeyo. Below is the full conjugation of 발달하다 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 | 발달해요 bahl-dahl-hae-yoh baldalhaeyo | 발달합니다 bahl-dahl-hahm-nee-dah baldalhamnida | |
| Past | 발달했어 bahl-dahl-hae-ssuh baldalhaesseo | 발달했어요 bahl-dahl-hae-ssuh-yoh baldalhaesseoyo | 발달했습니다 bahl-dahl-hae-sseum-nee-dah baldalhaesseumnida |
| Future | 발달할 거야 bahl-dahl-hahl guh-yah baldalhal geoya | 발달할 거예요 bahl-dahl-hahl guh-yae-yoh baldalhal geoyeyo | 발달할 겁니다 bahl-dahl-hahl guhm-nee-dah baldalhal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
발달하세요
bahl-dahl-hah-sae-yoh
baldalhaseyo
Suggestion / Let's Polite (요)
발달해요
bahl-dahl-hae-yoh
baldalhaeyo
Question Polite (요)
발달해요?
bahl-dahl-hae-yoh-?
baldalhaeyo?
Connective "and" — (고)
발달하고
bahl-dahl-hah-goh
baldalhago
Conditional "if" — (면)
발달하면
bahl-dahl-hah-myuhn
baldalhamyeon
Progressive (고 있어요)
발달하고 있어요
bahl-dahl-hah-goh ee-ssuh-yoh
baldalhago isseoyo
Want to (고 싶어요)
발달하고 싶어요
bahl-dahl-hah-goh shee-puh-yoh
baldalhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
발달할 수 있어요
bahl-dahl-hahl soo ee-ssuh-yoh
baldalhal su isseoyo
Because / So (아/어서)
발달해서
bahl-dahl-hae-suh
baldalhaeseo
Noun form — (기)
발달하기
bahl-dahl-hah-gee
baldalhagi
Noun form — (음)
발달함
bahl-dahl-hahm
baldalham