Verbseoul.
하다 verb

배반하다 conjugation (baebanhada, to betray)

To say to betray politely in the present tense, use 배반해요 (bae-bahn-hae-yoh) · baebanhaeyo. Below is the full conjugation of 배반하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb): 하다 verbs are formed with a Sino-Korean noun + 하다 (e.g. 공부하다 = study + do). 하다 conjugates irregularly: the ㅏ in 하 contracts with the -아/-어 suffix to give 해 (not *하어). Present polite: 해요; past polite: 했어요. The formal ending is 합니다 (not *하습니다). Most noun+하다 compounds follow this pattern uniformly. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
배반해
bae-bahn-hae
baebanhae
배반해요
bae-bahn-hae-yoh
baebanhaeyo
배반합니다
bae-bahn-hahm-nee-dah
baebanhamnida
Past
배반했어
bae-bahn-hae-ssuh
baebanhaesseo
배반했어요
bae-bahn-hae-ssuh-yoh
baebanhaesseoyo
배반했습니다
bae-bahn-hae-sseum-nee-dah
baebanhaesseumnida
Future
배반할 거야
bae-bahn-hahl guh-yah
baebanhal geoya
배반할 거예요
bae-bahn-hahl guh-yae-yoh
baebanhal geoyeyo
배반할 겁니다
bae-bahn-hahl guhm-nee-dah
baebanhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
배반하세요
bae-bahn-hah-sae-yoh
baebanhaseyo
Suggestion / Let's Polite (요)
배반해요
bae-bahn-hae-yoh
baebanhaeyo
Question Polite (요)
배반해요?
bae-bahn-hae-yoh-?
baebanhaeyo?
Connective "and" — (고)
배반하고
bae-bahn-hah-goh
baebanhago
Conditional "if" — (면)
배반하면
bae-bahn-hah-myuhn
baebanhamyeon
Progressive (고 있어요)
배반하고 있어요
bae-bahn-hah-goh ee-ssuh-yoh
baebanhago isseoyo
Want to (고 싶어요)
배반하고 싶어요
bae-bahn-hah-goh shee-puh-yoh
baebanhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
배반할 수 있어요
bae-bahn-hahl soo ee-ssuh-yoh
baebanhal su isseoyo
Because / So (아/어서)
배반해서
bae-bahn-hae-suh
baebanhaeseo
Noun form — (기)
배반하기
bae-bahn-hah-gee
baebanhagi
Noun form — (음)
배반함
bae-bahn-hahm
baebanham