Verbseoul.
하다 verb (adj)
생생하다saengsaenghadato be fresh, to be vivid, to be lively

To say to be fresh, to be vivid, to be lively politely in the present tense, use 생생해요 (saeng-saeng-hae-yoh). Below is the full conjugation of 생생하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
생생해
saeng-saeng-hae
생생해요
saeng-saeng-hae-yoh
생생합니다
saeng-saeng-hahm-nee-dah
Past
생생했어
saeng-saeng-hae-ssuh
생생했어요
saeng-saeng-hae-ssuh-yoh
생생했습니다
saeng-saeng-hae-sseum-nee-dah
Future
생생할 거야
saeng-saeng-hahl- -guh-yah
생생할 거예요
saeng-saeng-hahl- -guh-yae-yoh
생생할 겁니다
saeng-saeng-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
생생하세요
saeng-saeng-hah-sae-yoh
Suggestion / Let's Polite (요)
생생해요
saeng-saeng-hae-yoh
Question Polite (요)
생생해요?
saeng-saeng-hae-yoh-?
Connective “and” — (고)
생생하고
saeng-saeng-hah-goh
Conditional “if” — (면)
생생하면
saeng-saeng-hah-myuhn
Noun form — (기)
생생함
saeng-saeng-hahm