Verbseoul.
regular
더러워지다deoreowojidato become dirty, to be stained

To say to become dirty, to be stained politely in the present tense, use 더러워져요 (duh-ruh-wuh-chyuh-yoh). Below is the full conjugation of 더러워지다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
더러워져
duh-ruh-wuh-chyuh
더러워져요
duh-ruh-wuh-chyuh-yoh
더러워집니다
duh-ruh-wuh-cheem-nee-dah
Past
더러워졌어
duh-ruh-wuh-chyuh-ssuh
더러워졌어요
duh-ruh-wuh-chyuh-ssuh-yoh
더러워졌습니다
duh-ruh-wuh-chyuh-sseum-nee-dah
Future
더러워질 거야
duh-ruh-wuh-cheel- -guh-yah
더러워질 거예요
duh-ruh-wuh-cheel- -guh-yae-yoh
더러워질 겁니다
duh-ruh-wuh-cheel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
더러워지세요
duh-ruh-wuh-chee-sae-yoh
Suggestion / Let's Polite (요)
더러워져요
duh-ruh-wuh-chyuh-yoh
Question Polite (요)
더러워져요?
duh-ruh-wuh-chyuh-yoh-?
Connective “and” — (고)
더러워지고
duh-ruh-wuh-chee-goh
Conditional “if” — (면)
더러워지면
duh-ruh-wuh-chee-myuhn
Noun form — (기)
더러워짐
duh-ruh-wuh-cheem