잠자
chahm-chah
jamja
regular
잠자다
To say to sleep politely in the present tense, use 잠자요 (chahm-chah-yoh) · jamjayo. Below is the full conjugation of 잠자다 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 | 잠자요 chahm-chah-yoh jamjayo | 잠잡니다 chahm-chahm-nee-dah jamjamnida | |
| Past | 잠잤어 chahm-chah-ssuh jamjasseo | 잠잤어요 chahm-chah-ssuh-yoh jamjasseoyo | 잠잤습니다 chahm-chah-sseum-nee-dah jamjasseumnida |
| Future | 잠잘 거야 chahm-chahl guh-yah jamjal geoya | 잠잘 거예요 chahm-chahl guh-yae-yoh jamjal geoyeyo | 잠잘 겁니다 chahm-chahl guhm-nee-dah jamjal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
잠자세요
chahm-chah-sae-yoh
jamjaseyo
Suggestion / Let's Polite (요)
잠자요
chahm-chah-yoh
jamjayo
Question Polite (요)
잠자요?
chahm-chah-yoh-?
jamjayo?
Connective "and" — (고)
잠자고
chahm-chah-goh
jamjago
Conditional "if" — (면)
잠자면
chahm-chah-myuhn
jamjamyeon
Progressive (고 있어요)
잠자고 있어요
chahm-chah-goh ee-ssuh-yoh
jamjago isseoyo
Want to (고 싶어요)
잠자고 싶어요
chahm-chah-goh shee-puh-yoh
jamjago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
잠잘 수 있어요
chahm-chahl soo ee-ssuh-yoh
jamjal su isseoyo
Because / So (아/어서)
잠자서
chahm-chah-suh
jamjaseo
Noun form — (기)
잠자기
chahm-chah-gee
jamjagi
Noun form — (음)
잠잠
chahm-chahm
jamjam