Verbseoul.
하다 verb

합류하다 conjugation (hapryuhada, to join, to come together, to merge)

To say to join, to come together, to merge politely in the present tense, use 합류해요 (hahm-nyoo-hae-yoh) · hamnyuhaeyo. Below is the full conjugation of 합류하다 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
합류해
hahm-nyoo-hae
hamnyuhae
합류해요
hahm-nyoo-hae-yoh
hamnyuhaeyo
합류합니다
hahm-nyoo-hahm-nee-dah
hamnyuhamnida
Past
합류했어
hahm-nyoo-hae-ssuh
hamnyuhaesseo
합류했어요
hahm-nyoo-hae-ssuh-yoh
hamnyuhaesseoyo
합류했습니다
hahm-nyoo-hae-sseum-nee-dah
hamnyuhaesseumnida
Future
합류할 거야
hahm-nyoo-hahl guh-yah
hamnyuhal geoya
합류할 거예요
hahm-nyoo-hahl guh-yae-yoh
hamnyuhal geoyeyo
합류할 겁니다
hahm-nyoo-hahl guhm-nee-dah
hamnyuhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
합류하세요
hahm-nyoo-hah-sae-yoh
hamnyuhaseyo
Suggestion / Let's Polite (요)
합류해요
hahm-nyoo-hae-yoh
hamnyuhaeyo
Question Polite (요)
합류해요?
hahm-nyoo-hae-yoh-?
hamnyuhaeyo?
Connective "and" — (고)
합류하고
hahm-nyoo-hah-goh
hamnyuhago
Conditional "if" — (면)
합류하면
hahm-nyoo-hah-myuhn
hamnyuhamyeon
Progressive (고 있어요)
합류하고 있어요
hahm-nyoo-hah-goh ee-ssuh-yoh
hamnyuhago isseoyo
Want to (고 싶어요)
합류하고 싶어요
hahm-nyoo-hah-goh shee-puh-yoh
hamnyuhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
합류할 수 있어요
hahm-nyoo-hahl soo ee-ssuh-yoh
hamnyuhal su isseoyo
Because / So (아/어서)
합류해서
hahm-nyoo-hae-suh
hamnyuhaeseo
Noun form — (기)
합류하기
hahm-nyoo-hah-gee
hamnyuhagi
Noun form — (음)
합류함
hahm-nyoo-hahm
hamnyuham