Verbseoul.
regular

따지다 conjugation (ttajida, to distinguish (between right and wrong))

To say to distinguish (between right and wrong) politely in the present tense, use 따져요 (ttah-chyuh-yoh) · ttajyeoyo. Below is the full conjugation of 따지다 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
따져
ttah-chyuh
ttajyeo
따져요
ttah-chyuh-yoh
ttajyeoyo
따집니다
ttah-cheem-nee-dah
ttajimnida
Past
따졌어
ttah-chyuh-ssuh
ttajyeosseo
따졌어요
ttah-chyuh-ssuh-yoh
ttajyeosseoyo
따졌습니다
ttah-chyuh-sseum-nee-dah
ttajyeosseumnida
Future
따질 거야
ttah-cheel guh-yah
ttajil geoya
따질 거예요
ttah-cheel guh-yae-yoh
ttajil geoyeyo
따질 겁니다
ttah-cheel guhm-nee-dah
ttajil geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
따지세요
ttah-chee-sae-yoh
ttajiseyo
Suggestion / Let's Polite (요)
따져요
ttah-chyuh-yoh
ttajyeoyo
Question Polite (요)
따져요?
ttah-chyuh-yoh-?
ttajyeoyo?
Connective "and" — (고)
따지고
ttah-chee-goh
ttajigo
Conditional "if" — (면)
따지면
ttah-chee-myuhn
ttajimyeon
Progressive (고 있어요)
따지고 있어요
ttah-chee-goh ee-ssuh-yoh
ttajigo isseoyo
Want to (고 싶어요)
따지고 싶어요
ttah-chee-goh shee-puh-yoh
ttajigo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
따질 수 있어요
ttah-cheel soo ee-ssuh-yoh
ttajil su isseoyo
Because / So (아/어서)
따져서
ttah-chyuh-suh
ttajyeoseo
Noun form — (기)
따지기
ttah-chee-gee
ttajigi
Noun form — (음)
따짐
ttah-cheem
ttajim