Verbseoul.
하다 verb (adj)
총명하다chongmyeonghadaclever, intelligent, smart

To say clever, intelligent, smart politely in the present tense, use 총명해요 (chohng-myuhng-hae-yoh). Below is the full conjugation of 총명하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
총명해
chohng-myuhng-hae
총명해요
chohng-myuhng-hae-yoh
총명합니다
chohng-myuhng-hahm-nee-dah
Past
총명했어
chohng-myuhng-hae-ssuh
총명했어요
chohng-myuhng-hae-ssuh-yoh
총명했습니다
chohng-myuhng-hae-sseum-nee-dah
Future
총명할 거야
chohng-myuhng-hahl- -guh-yah
총명할 거예요
chohng-myuhng-hahl- -guh-yae-yoh
총명할 겁니다
chohng-myuhng-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
총명하세요
chohng-myuhng-hah-sae-yoh
Suggestion / Let's Polite (요)
총명해요
chohng-myuhng-hae-yoh
Question Polite (요)
총명해요?
chohng-myuhng-hae-yoh-?
Connective “and” — (고)
총명하고
chohng-myuhng-hah-goh
Conditional “if” — (면)
총명하면
chohng-myuhng-hah-myuhn
Noun form — (기)
총명함
chohng-myuhng-hahm