Verbseoul.
하다 verb

배신하다 conjugation (baesinhada, to betray)

To say to betray politely in the present tense, use 배신해요 (bae-sheen-hae-yoh) · baesinhaeyo. Below is the full conjugation of 배신하다 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
배신해
bae-sheen-hae
baesinhae
배신해요
bae-sheen-hae-yoh
baesinhaeyo
배신합니다
bae-sheen-hahm-nee-dah
baesinhamnida
Past
배신했어
bae-sheen-hae-ssuh
baesinhaesseo
배신했어요
bae-sheen-hae-ssuh-yoh
baesinhaesseoyo
배신했습니다
bae-sheen-hae-sseum-nee-dah
baesinhaesseumnida
Future
배신할 거야
bae-sheen-hahl guh-yah
baesinhal geoya
배신할 거예요
bae-sheen-hahl guh-yae-yoh
baesinhal geoyeyo
배신할 겁니다
bae-sheen-hahl guhm-nee-dah
baesinhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
배신하세요
bae-sheen-hah-sae-yoh
baesinhaseyo
Suggestion / Let's Polite (요)
배신해요
bae-sheen-hae-yoh
baesinhaeyo
Question Polite (요)
배신해요?
bae-sheen-hae-yoh-?
baesinhaeyo?
Connective "and" — (고)
배신하고
bae-sheen-hah-goh
baesinhago
Conditional "if" — (면)
배신하면
bae-sheen-hah-myuhn
baesinhamyeon
Progressive (고 있어요)
배신하고 있어요
bae-sheen-hah-goh ee-ssuh-yoh
baesinhago isseoyo
Want to (고 싶어요)
배신하고 싶어요
bae-sheen-hah-goh shee-puh-yoh
baesinhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
배신할 수 있어요
bae-sheen-hahl soo ee-ssuh-yoh
baesinhal su isseoyo
Because / So (아/어서)
배신해서
bae-sheen-hae-suh
baesinhaeseo
Noun form — (기)
배신하기
bae-sheen-hah-gee
baesinhagi
Noun form — (음)
배신함
bae-sheen-hahm
baesinham