Verbseoul.
하다 verb

참조하다 conjugation (chamjohada, to refer to, to reference)

To say to refer to, to reference politely in the present tense, use 참조해요 (chahm-choh-hae-yoh) · chamjohaeyo. Below is the full conjugation of 참조하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb): 하다 verbs are formed with a Sino-Korean noun + 하다 (e.g. 공부하다 = study + do). 하다 conjugates irregularly: the ㅏ in 하 contracts with the -아/-어 suffix to give 해 (not *하어). Present polite: 해요; past polite: 했어요. The formal ending is 합니다 (not *하습니다). Most noun+하다 compounds follow this pattern uniformly. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
참조해
chahm-choh-hae
chamjohae
참조해요
chahm-choh-hae-yoh
chamjohaeyo
참조합니다
chahm-choh-hahm-nee-dah
chamjohamnida
Past
참조했어
chahm-choh-hae-ssuh
chamjohaesseo
참조했어요
chahm-choh-hae-ssuh-yoh
chamjohaesseoyo
참조했습니다
chahm-choh-hae-sseum-nee-dah
chamjohaesseumnida
Future
참조할 거야
chahm-choh-hahl guh-yah
chamjohal geoya
참조할 거예요
chahm-choh-hahl guh-yae-yoh
chamjohal geoyeyo
참조할 겁니다
chahm-choh-hahl guhm-nee-dah
chamjohal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
참조하세요
chahm-choh-hah-sae-yoh
chamjohaseyo
Suggestion / Let's Polite (요)
참조해요
chahm-choh-hae-yoh
chamjohaeyo
Question Polite (요)
참조해요?
chahm-choh-hae-yoh-?
chamjohaeyo?
Connective "and" — (고)
참조하고
chahm-choh-hah-goh
chamjohago
Conditional "if" — (면)
참조하면
chahm-choh-hah-myuhn
chamjohamyeon
Progressive (고 있어요)
참조하고 있어요
chahm-choh-hah-goh ee-ssuh-yoh
chamjohago isseoyo
Want to (고 싶어요)
참조하고 싶어요
chahm-choh-hah-goh shee-puh-yoh
chamjohago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
참조할 수 있어요
chahm-choh-hahl soo ee-ssuh-yoh
chamjohal su isseoyo
Because / So (아/어서)
참조해서
chahm-choh-hae-suh
chamjohaeseo
Noun form — (기)
참조하기
chahm-choh-hah-gee
chamjohagi
Noun form — (음)
참조함
chahm-choh-hahm
chamjoham