Verbseoul.
하다 verb
대접하다daejeophadato treat, to serve (somebody)

To say to treat, to serve (somebody) politely in the present tense, use 대접해요 (dae-chuh-pae-yoh). Below is the full conjugation of 대접하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
대접해
dae-chuh-pae
대접해요
dae-chuh-pae-yoh
대접합니다
dae-chuh-pahm-nee-dah
Past
대접했어
dae-chuh-pae-ssuh
대접했어요
dae-chuh-pae-ssuh-yoh
대접했습니다
dae-chuh-pae-sseum-nee-dah
Future
대접할 거야
dae-chuh-pahl- -guh-yah
대접할 거예요
dae-chuh-pahl- -guh-yae-yoh
대접할 겁니다
dae-chuh-pahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
대접하세요
dae-chuh-pah-sae-yoh
Suggestion / Let's Polite (요)
대접해요
dae-chuh-pae-yoh
Question Polite (요)
대접해요?
dae-chuh-pae-yoh-?
Connective “and” — (고)
대접하고
dae-chuh-pah-goh
Conditional “if” — (면)
대접하면
dae-chuh-pah-myuhn
Noun form — (기)
대접함
dae-chuh-pahm