Verbseoul.
regular

그만두다 conjugation (geumanduda, to quit)

To say to quit politely in the present tense, use 그만둬요 (geu-mahn-dwuh-yoh) · geumandwoyo. Below is the full conjugation of 그만두다 across the three tenses and three everyday speech levels.

Grammar note (regular): Regular verbs and adjectives conjugate predictably. Before 어-series suffixes, vowels may contract (가 + 아 → 가, 보 + 아 → 봐), but no consonant in the stem changes. If the final vowel of the stem is ㅏ or ㅗ, use 아; otherwise use 어. Consonant-final stems: 먹 + 어 → 먹어; vowel-final: 가 + 아 → 가.

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

TenseCasual (반말)Polite (요)Formal (합니다)
Present
그만둬
geu-mahn-dwuh
geumandwo
그만둬요
geu-mahn-dwuh-yoh
geumandwoyo
그만둡니다
geu-mahn-doom-nee-dah
geumandumnida
Past
그만뒀어
geu-mahn-dwuh-ssuh
geumandwosseo
그만뒀어요
geu-mahn-dwuh-ssuh-yoh
geumandwosseoyo
그만뒀습니다
geu-mahn-dwuh-sseum-nee-dah
geumandwosseumnida
Future
그만둘 거야
geu-mahn-dool guh-yah
geumandul geoya
그만둘 거예요
geu-mahn-dool guh-yae-yoh
geumandul geoyeyo
그만둘 겁니다
geu-mahn-dool guhm-nee-dah
geumandul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
그만두세요
geu-mahn-doo-sae-yoh
geumanduseyo
Suggestion / Let's Polite (요)
그만둬요
geu-mahn-dwuh-yoh
geumandwoyo
Question Polite (요)
그만둬요?
geu-mahn-dwuh-yoh-?
geumandwoyo?
Connective "and" — (고)
그만두고
geu-mahn-doo-goh
geumandugo
Conditional "if" — (면)
그만두면
geu-mahn-doo-myuhn
geumandumyeon
Progressive (고 있어요)
그만두고 있어요
geu-mahn-doo-goh ee-ssuh-yoh
geumandugo isseoyo
Want to (고 싶어요)
그만두고 싶어요
geu-mahn-doo-goh shee-puh-yoh
geumandugo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
그만둘 수 있어요
geu-mahn-dool soo ee-ssuh-yoh
geumandul su isseoyo
Because / So (아/어서)
그만둬서
geu-mahn-dwuh-suh
geumandwoseo
Noun form — (기)
그만두기
geu-mahn-doo-gee
geumandugi
Noun form — (음)
그만둠
geu-mahn-doom
geumandum