Verbseoul.
regular
장가가다janggagadato get married (and so, to enter into the wife's family)

To say to get married (and so, to enter into the wife's family) politely in the present tense, use 장가가요 (chahng-gah-gah-yoh). Below is the full conjugation of 장가가다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
장가가
chahng-gah-gah
장가가요
chahng-gah-gah-yoh
장가갑니다
chahng-gah-gahm-nee-dah
Past
장가갔어
chahng-gah-gah-ssuh
장가갔어요
chahng-gah-gah-ssuh-yoh
장가갔습니다
chahng-gah-gah-sseum-nee-dah
Future
장가갈 거야
chahng-gah-gahl- -guh-yah
장가갈 거예요
chahng-gah-gahl- -guh-yae-yoh
장가갈 겁니다
chahng-gah-gahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
장가가세요
chahng-gah-gah-sae-yoh
Suggestion / Let's Polite (요)
장가가요
chahng-gah-gah-yoh
Question Polite (요)
장가가요?
chahng-gah-gah-yoh-?
Connective “and” — (고)
장가가고
chahng-gah-gah-goh
Conditional “if” — (면)
장가가면
chahng-gah-gah-myuhn
Noun form — (기)
장가감
chahng-gah-gahm