Verbseoul.
regular

잊다 conjugation (itda-2, to forget)

To say to forget politely in the present tense, use 잊어요 (ee-chuh-yoh) · ijeoyo. Below is the full conjugation of 잊다 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
잊어
ee-chuh
ijeo
잊어요
ee-chuh-yoh
ijeoyo
잊습니다
eet-seum-nee-dah
itseumnida
Past
잊었어
ee-chuh-ssuh
ijeosseo
잊었어요
ee-chuh-ssuh-yoh
ijeosseoyo
잊었습니다
ee-chuh-sseum-nee-dah
ijeosseumnida
Future
잊을 거야
ee-cheul guh-yah
ijeul geoya
잊을 거예요
ee-cheul guh-yae-yoh
ijeul geoyeyo
잊을 겁니다
ee-cheul guhm-nee-dah
ijeul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
잊으세요
ee-cheu-sae-yoh
ijeuseyo
Suggestion / Let's Polite (요)
잊어요
ee-chuh-yoh
ijeoyo
Question Polite (요)
잊어요?
ee-chuh-yoh-?
ijeoyo?
Connective "and" — (고)
잊고
eet-goh
itgo
Conditional "if" — (면)
잊으면
ee-cheu-myuhn
ijeumyeon
Progressive (고 있어요)
잊고 있어요
eet-goh ee-ssuh-yoh
itgo isseoyo
Want to (고 싶어요)
잊고 싶어요
eet-goh shee-puh-yoh
itgo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
잊을 수 있어요
ee-cheul soo ee-ssuh-yoh
ijeul su isseoyo
Because / So (아/어서)
잊어서
ee-chuh-suh
ijeoseo
Noun form — (기)
잊기
eet-gee
itgi
Noun form — (음)
잊음
ee-cheum
ijeum