나빠져
nah-bbah-chyuh
nappajyeo
regular
나빠지다
To say to get worse, to deteriorate politely in the present tense, use 나빠져요 (nah-bbah-chyuh-yoh) · nappajyeoyo. Below is the full conjugation of 나빠지다 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
| Tense | Casual (반말) | Polite (요) | Formal (합니다) |
|---|---|---|---|
| Present | 나빠져요 nah-bbah-chyuh-yoh nappajyeoyo | 나빠집니다 nah-bbah-cheem-nee-dah nappajimnida | |
| Past | 나빠졌어 nah-bbah-chyuh-ssuh nappajyeosseo | 나빠졌어요 nah-bbah-chyuh-ssuh-yoh nappajyeosseoyo | 나빠졌습니다 nah-bbah-chyuh-sseum-nee-dah nappajyeosseumnida |
| Future | 나빠질 거야 nah-bbah-cheel guh-yah nappajil geoya | 나빠질 거예요 nah-bbah-cheel guh-yae-yoh nappajil geoyeyo | 나빠질 겁니다 nah-bbah-cheel guhm-nee-dah nappajil geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
나빠지세요
nah-bbah-chee-sae-yoh
nappajiseyo
Suggestion / Let's Polite (요)
나빠져요
nah-bbah-chyuh-yoh
nappajyeoyo
Question Polite (요)
나빠져요?
nah-bbah-chyuh-yoh-?
nappajyeoyo?
Connective "and" — (고)
나빠지고
nah-bbah-chee-goh
nappajigo
Conditional "if" — (면)
나빠지면
nah-bbah-chee-myuhn
nappajimyeon
Progressive (고 있어요)
나빠지고 있어요
nah-bbah-chee-goh ee-ssuh-yoh
nappajigo isseoyo
Want to (고 싶어요)
나빠지고 싶어요
nah-bbah-chee-goh shee-puh-yoh
nappajigo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
나빠질 수 있어요
nah-bbah-cheel soo ee-ssuh-yoh
nappajil su isseoyo
Because / So (아/어서)
나빠져서
nah-bbah-chyuh-suh
nappajyeoseo
Noun form — (기)
나빠지기
nah-bbah-chee-gee
nappajigi
Noun form — (음)
나빠짐
nah-bbah-cheem
nappajim