Verbseoul.
regular
합치다hapchidato combine

To say to combine politely in the present tense, use 합쳐요 (hahp-chyuh-yoh). Below is the full conjugation of 합치다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
합쳐
hahp-chyuh
합쳐요
hahp-chyuh-yoh
합칩니다
hahp-cheem-nee-dah
Past
합쳤어
hahp-chyuh-ssuh
합쳤어요
hahp-chyuh-ssuh-yoh
합쳤습니다
hahp-chyuh-sseum-nee-dah
Future
합칠 거야
hahp-cheel- -guh-yah
합칠 거예요
hahp-cheel- -guh-yae-yoh
합칠 겁니다
hahp-cheel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
합치세요
hahp-chee-sae-yoh
Suggestion / Let's Polite (요)
합쳐요
hahp-chyuh-yoh
Question Polite (요)
합쳐요?
hahp-chyuh-yoh-?
Connective “and” — (고)
합치고
hahp-chee-goh
Conditional “if” — (면)
합치면
hahp-chee-myuhn
Noun form — (기)
합침
hahp-cheem