Verbseoul.
하다 verb
반하다banhadato be contrary (to)

To say to be contrary (to) politely in the present tense, use 반해요 (bahn-hae-yoh). Below is the full conjugation of 반하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
반해
bahn-hae
반해요
bahn-hae-yoh
반합니다
bahn-hahm-nee-dah
Past
반했어
bahn-hae-ssuh
반했어요
bahn-hae-ssuh-yoh
반했습니다
bahn-hae-sseum-nee-dah
Future
반할 거야
bahn-hahl- -guh-yah
반할 거예요
bahn-hahl- -guh-yae-yoh
반할 겁니다
bahn-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
반하세요
bahn-hah-sae-yoh
Suggestion / Let's Polite (요)
반해요
bahn-hae-yoh
Question Polite (요)
반해요?
bahn-hae-yoh-?
Connective “and” — (고)
반하고
bahn-hah-goh
Conditional “if” — (면)
반하면
bahn-hah-myuhn
Noun form — (기)
반함
bahn-hahm