Verbseoul.
하다 verb (adj)
소박하다sobakhadasimple, naive, unsophisticated

To say simple, naive, unsophisticated politely in the present tense, use 소박해요 (soh-bah-kae-yoh). Below is the full conjugation of 소박하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
소박해
soh-bah-kae
소박해요
soh-bah-kae-yoh
소박합니다
soh-bah-kahm-nee-dah
Past
소박했어
soh-bah-kae-ssuh
소박했어요
soh-bah-kae-ssuh-yoh
소박했습니다
soh-bah-kae-sseum-nee-dah
Future
소박할 거야
soh-bah-kahl- -guh-yah
소박할 거예요
soh-bah-kahl- -guh-yae-yoh
소박할 겁니다
soh-bah-kahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
소박하세요
soh-bah-kah-sae-yoh
Suggestion / Let's Polite (요)
소박해요
soh-bah-kae-yoh
Question Polite (요)
소박해요?
soh-bah-kae-yoh-?
Connective “and” — (고)
소박하고
soh-bah-kah-goh
Conditional “if” — (면)
소박하면
soh-bah-kah-myuhn
Noun form — (기)
소박함
soh-bah-kahm