Verbseoul.
하다 verb

거짓말하다 conjugation (geojitmalhada, to lie)

To say to lie politely in the present tense, use 거짓말해요 (guh-cheen-mahl-hae-yoh) · geojinmalhaeyo. Below is the full conjugation of 거짓말하다 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
거짓말해
guh-cheen-mahl-hae
geojinmalhae
거짓말해요
guh-cheen-mahl-hae-yoh
geojinmalhaeyo
거짓말합니다
guh-cheen-mahl-hahm-nee-dah
geojinmalhamnida
Past
거짓말했어
guh-cheen-mahl-hae-ssuh
geojinmalhaesseo
거짓말했어요
guh-cheen-mahl-hae-ssuh-yoh
geojinmalhaesseoyo
거짓말했습니다
guh-cheen-mahl-hae-sseum-nee-dah
geojinmalhaesseumnida
Future
거짓말할 거야
guh-cheen-mahl-hahl guh-yah
geojinmalhal geoya
거짓말할 거예요
guh-cheen-mahl-hahl guh-yae-yoh
geojinmalhal geoyeyo
거짓말할 겁니다
guh-cheen-mahl-hahl guhm-nee-dah
geojinmalhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
거짓말하세요
guh-cheen-mahl-hah-sae-yoh
geojinmalhaseyo
Suggestion / Let's Polite (요)
거짓말해요
guh-cheen-mahl-hae-yoh
geojinmalhaeyo
Question Polite (요)
거짓말해요?
guh-cheen-mahl-hae-yoh-?
geojinmalhaeyo?
Connective "and" — (고)
거짓말하고
guh-cheen-mahl-hah-goh
geojinmalhago
Conditional "if" — (면)
거짓말하면
guh-cheen-mahl-hah-myuhn
geojinmalhamyeon
Progressive (고 있어요)
거짓말하고 있어요
guh-cheen-mahl-hah-goh ee-ssuh-yoh
geojinmalhago isseoyo
Want to (고 싶어요)
거짓말하고 싶어요
guh-cheen-mahl-hah-goh shee-puh-yoh
geojinmalhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
거짓말할 수 있어요
guh-cheen-mahl-hahl soo ee-ssuh-yoh
geojinmalhal su isseoyo
Because / So (아/어서)
거짓말해서
guh-cheen-mahl-hae-suh
geojinmalhaeseo
Noun form — (기)
거짓말하기
guh-cheen-mahl-hah-gee
geojinmalhagi
Noun form — (음)
거짓말함
guh-cheen-mahl-hahm
geojinmalham