Verbseoul.
하다 verb (adj)
활발하다hwalbalhadaanimated, brisk, lively

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

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
활발해
hwahl-bahl-hae
활발해요
hwahl-bahl-hae-yoh
활발합니다
hwahl-bahl-hahm-nee-dah
Past
활발했어
hwahl-bahl-hae-ssuh
활발했어요
hwahl-bahl-hae-ssuh-yoh
활발했습니다
hwahl-bahl-hae-sseum-nee-dah
Future
활발할 거야
hwahl-bahl-hahl- -guh-yah
활발할 거예요
hwahl-bahl-hahl- -guh-yae-yoh
활발할 겁니다
hwahl-bahl-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
활발하세요
hwahl-bahl-hah-sae-yoh
Suggestion / Let's Polite (요)
활발해요
hwahl-bahl-hae-yoh
Question Polite (요)
활발해요?
hwahl-bahl-hae-yoh-?
Connective “and” — (고)
활발하고
hwahl-bahl-hah-goh
Conditional “if” — (면)
활발하면
hwahl-bahl-hah-myuhn
Noun form — (기)
활발함
hwahl-bahl-hahm