Verbseoul.
하다 verb (adj)

활발하다 conjugation (hwalbalhada, animated, brisk, lively)

To say animated, brisk, lively politely in the present tense, use 활발해요 (hwahl-bahl-hae-yoh) · hwalbalhaeyo. Below is the full conjugation of 활발하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb (adj)): 하다 adjectives use the same verb 하다 as a suffix to turn descriptive nouns into predicates (행복하다 = to be happy). They conjugate identically to 하다 verbs: the 하 contracts before -아/-어 suffixes to give 해. 행복해요, 행복했어요, 행복합니다. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
활발해
hwahl-bahl-hae
hwalbalhae
활발해요
hwahl-bahl-hae-yoh
hwalbalhaeyo
활발합니다
hwahl-bahl-hahm-nee-dah
hwalbalhamnida
Past
활발했어
hwahl-bahl-hae-ssuh
hwalbalhaesseo
활발했어요
hwahl-bahl-hae-ssuh-yoh
hwalbalhaesseoyo
활발했습니다
hwahl-bahl-hae-sseum-nee-dah
hwalbalhaesseumnida
Future
활발할 거야
hwahl-bahl-hahl guh-yah
hwalbalhal geoya
활발할 거예요
hwahl-bahl-hahl guh-yae-yoh
hwalbalhal geoyeyo
활발할 겁니다
hwahl-bahl-hahl guhm-nee-dah
hwalbalhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
활발하세요
hwahl-bahl-hah-sae-yoh
hwalbalhaseyo
Suggestion / Let's Polite (요)
활발해요
hwahl-bahl-hae-yoh
hwalbalhaeyo
Question Polite (요)
활발해요?
hwahl-bahl-hae-yoh-?
hwalbalhaeyo?
Connective "and" — (고)
활발하고
hwahl-bahl-hah-goh
hwalbalhago
Conditional "if" — (면)
활발하면
hwahl-bahl-hah-myuhn
hwalbalhamyeon
Progressive (고 있어요)
활발하고 있어요
hwahl-bahl-hah-goh ee-ssuh-yoh
hwalbalhago isseoyo
Want to (고 싶어요)
활발하고 싶어요
hwahl-bahl-hah-goh shee-puh-yoh
hwalbalhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
활발할 수 있어요
hwahl-bahl-hahl soo ee-ssuh-yoh
hwalbalhal su isseoyo
Because / So (아/어서)
활발해서
hwahl-bahl-hae-suh
hwalbalhaeseo
Noun form — (기)
활발하기
hwahl-bahl-hah-gee
hwalbalhagi
Noun form — (음)
활발함
hwahl-bahl-hahm
hwalbalham