Verbseoul.
하다 verb
설하다seolhadato preach, to expound

To say to preach, to expound politely in the present tense, use 설해요 (suhl-hae-yoh). Below is the full conjugation of 설하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
설해
suhl-hae
설해요
suhl-hae-yoh
설합니다
suhl-hahm-nee-dah
Past
설했어
suhl-hae-ssuh
설했어요
suhl-hae-ssuh-yoh
설했습니다
suhl-hae-sseum-nee-dah
Future
설할 거야
suhl-hahl- -guh-yah
설할 거예요
suhl-hahl- -guh-yae-yoh
설할 겁니다
suhl-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
설하세요
suhl-hah-sae-yoh
Suggestion / Let's Polite (요)
설해요
suhl-hae-yoh
Question Polite (요)
설해요?
suhl-hae-yoh-?
Connective “and” — (고)
설하고
suhl-hah-goh
Conditional “if” — (면)
설하면
suhl-hah-myuhn
Noun form — (기)
설함
suhl-hahm