Verbseoul.
regular

세지다 conjugation (sejida, to become strong(er))

To say to become strong(er) politely in the present tense, use 세져요 (sae-chyuh-yoh) · sejyeoyo. Below is the full conjugation of 세지다 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
세져
sae-chyuh
sejyeo
세져요
sae-chyuh-yoh
sejyeoyo
세집니다
sae-cheem-nee-dah
sejimnida
Past
세졌어
sae-chyuh-ssuh
sejyeosseo
세졌어요
sae-chyuh-ssuh-yoh
sejyeosseoyo
세졌습니다
sae-chyuh-sseum-nee-dah
sejyeosseumnida
Future
세질 거야
sae-cheel guh-yah
sejil geoya
세질 거예요
sae-cheel guh-yae-yoh
sejil geoyeyo
세질 겁니다
sae-cheel guhm-nee-dah
sejil geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
세지세요
sae-chee-sae-yoh
sejiseyo
Suggestion / Let's Polite (요)
세져요
sae-chyuh-yoh
sejyeoyo
Question Polite (요)
세져요?
sae-chyuh-yoh-?
sejyeoyo?
Connective "and" — (고)
세지고
sae-chee-goh
sejigo
Conditional "if" — (면)
세지면
sae-chee-myuhn
sejimyeon
Progressive (고 있어요)
세지고 있어요
sae-chee-goh ee-ssuh-yoh
sejigo isseoyo
Want to (고 싶어요)
세지고 싶어요
sae-chee-goh shee-puh-yoh
sejigo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
세질 수 있어요
sae-cheel soo ee-ssuh-yoh
sejil su isseoyo
Because / So (아/어서)
세져서
sae-chyuh-suh
sejyeoseo
Noun form — (기)
세지기
sae-chee-gee
sejigi
Noun form — (음)
세짐
sae-cheem
sejim