Verbseoul.
하다 verb (adj)
동일하다dongilhadathe same, identical, equal

To say the same, identical, equal politely in the present tense, use 동일해요 (dohng-eel-hae-yoh). Below is the full conjugation of 동일하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
동일해
dohng-eel-hae
동일해요
dohng-eel-hae-yoh
동일합니다
dohng-eel-hahm-nee-dah
Past
동일했어
dohng-eel-hae-ssuh
동일했어요
dohng-eel-hae-ssuh-yoh
동일했습니다
dohng-eel-hae-sseum-nee-dah
Future
동일할 거야
dohng-eel-hahl- -guh-yah
동일할 거예요
dohng-eel-hahl- -guh-yae-yoh
동일할 겁니다
dohng-eel-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
동일하세요
dohng-eel-hah-sae-yoh
Suggestion / Let's Polite (요)
동일해요
dohng-eel-hae-yoh
Question Polite (요)
동일해요?
dohng-eel-hae-yoh-?
Connective “and” — (고)
동일하고
dohng-eel-hah-goh
Conditional “if” — (면)
동일하면
dohng-eel-hah-myuhn
Noun form — (기)
동일함
dohng-eel-hahm