Verbseoul.
하다 verb

성교하다 conjugation (seonggyohada, to have sex, to make love, to copulate)

To say to have sex, to make love, to copulate politely in the present tense, use 성교해요 (suhng-gyoh-hae-yoh) · seonggyohaeyo. Below is the full conjugation of 성교하다 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
성교해
suhng-gyoh-hae
seonggyohae
성교해요
suhng-gyoh-hae-yoh
seonggyohaeyo
성교합니다
suhng-gyoh-hahm-nee-dah
seonggyohamnida
Past
성교했어
suhng-gyoh-hae-ssuh
seonggyohaesseo
성교했어요
suhng-gyoh-hae-ssuh-yoh
seonggyohaesseoyo
성교했습니다
suhng-gyoh-hae-sseum-nee-dah
seonggyohaesseumnida
Future
성교할 거야
suhng-gyoh-hahl guh-yah
seonggyohal geoya
성교할 거예요
suhng-gyoh-hahl guh-yae-yoh
seonggyohal geoyeyo
성교할 겁니다
suhng-gyoh-hahl guhm-nee-dah
seonggyohal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
성교하세요
suhng-gyoh-hah-sae-yoh
seonggyohaseyo
Suggestion / Let's Polite (요)
성교해요
suhng-gyoh-hae-yoh
seonggyohaeyo
Question Polite (요)
성교해요?
suhng-gyoh-hae-yoh-?
seonggyohaeyo?
Connective "and" — (고)
성교하고
suhng-gyoh-hah-goh
seonggyohago
Conditional "if" — (면)
성교하면
suhng-gyoh-hah-myuhn
seonggyohamyeon
Progressive (고 있어요)
성교하고 있어요
suhng-gyoh-hah-goh ee-ssuh-yoh
seonggyohago isseoyo
Want to (고 싶어요)
성교하고 싶어요
suhng-gyoh-hah-goh shee-puh-yoh
seonggyohago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
성교할 수 있어요
suhng-gyoh-hahl soo ee-ssuh-yoh
seonggyohal su isseoyo
Because / So (아/어서)
성교해서
suhng-gyoh-hae-suh
seonggyohaeseo
Noun form — (기)
성교하기
suhng-gyoh-hah-gee
seonggyohagi
Noun form — (음)
성교함
suhng-gyoh-hahm
seonggyoham