Verbseoul.
하다 verb
치료하다chiryohadato treat

To say to treat politely in the present tense, use 치료해요 (chee-ryoh-hae-yoh). Below is the full conjugation of 치료하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
치료해
chee-ryoh-hae
치료해요
chee-ryoh-hae-yoh
치료합니다
chee-ryoh-hahm-nee-dah
Past
치료했어
chee-ryoh-hae-ssuh
치료했어요
chee-ryoh-hae-ssuh-yoh
치료했습니다
chee-ryoh-hae-sseum-nee-dah
Future
치료할 거야
chee-ryoh-hahl- -guh-yah
치료할 거예요
chee-ryoh-hahl- -guh-yae-yoh
치료할 겁니다
chee-ryoh-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
치료하세요
chee-ryoh-hah-sae-yoh
Suggestion / Let's Polite (요)
치료해요
chee-ryoh-hae-yoh
Question Polite (요)
치료해요?
chee-ryoh-hae-yoh-?
Connective “and” — (고)
치료하고
chee-ryoh-hah-goh
Conditional “if” — (면)
치료하면
chee-ryoh-hah-myuhn
Noun form — (기)
치료함
chee-ryoh-hahm