Verbseoul.
regular
망가지다manggajidato break, to be destroyed/ruined

To say to break, to be destroyed/ruined politely in the present tense, use 망가져요 (mahng-gah-chyuh-yoh). Below is the full conjugation of 망가지다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
망가져
mahng-gah-chyuh
망가져요
mahng-gah-chyuh-yoh
망가집니다
mahng-gah-cheem-nee-dah
Past
망가졌어
mahng-gah-chyuh-ssuh
망가졌어요
mahng-gah-chyuh-ssuh-yoh
망가졌습니다
mahng-gah-chyuh-sseum-nee-dah
Future
망가질 거야
mahng-gah-cheel- -guh-yah
망가질 거예요
mahng-gah-cheel- -guh-yae-yoh
망가질 겁니다
mahng-gah-cheel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
망가지세요
mahng-gah-chee-sae-yoh
Suggestion / Let's Polite (요)
망가져요
mahng-gah-chyuh-yoh
Question Polite (요)
망가져요?
mahng-gah-chyuh-yoh-?
Connective “and” — (고)
망가지고
mahng-gah-chee-goh
Conditional “if” — (면)
망가지면
mahng-gah-chee-myuhn
Noun form — (기)
망가짐
mahng-gah-cheem