Verbseoul.
하다 verb (adj)
지저분하다jijeobunhadafilthy

To say filthy politely in the present tense, use 지저분해요 (chee-chuh-boon-hae-yoh). Below is the full conjugation of 지저분하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
지저분해
chee-chuh-boon-hae
지저분해요
chee-chuh-boon-hae-yoh
지저분합니다
chee-chuh-boon-hahm-nee-dah
Past
지저분했어
chee-chuh-boon-hae-ssuh
지저분했어요
chee-chuh-boon-hae-ssuh-yoh
지저분했습니다
chee-chuh-boon-hae-sseum-nee-dah
Future
지저분할 거야
chee-chuh-boon-hahl- -guh-yah
지저분할 거예요
chee-chuh-boon-hahl- -guh-yae-yoh
지저분할 겁니다
chee-chuh-boon-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
지저분하세요
chee-chuh-boon-hah-sae-yoh
Suggestion / Let's Polite (요)
지저분해요
chee-chuh-boon-hae-yoh
Question Polite (요)
지저분해요?
chee-chuh-boon-hae-yoh-?
Connective “and” — (고)
지저분하고
chee-chuh-boon-hah-goh
Conditional “if” — (면)
지저분하면
chee-chuh-boon-hah-myuhn
Noun form — (기)
지저분함
chee-chuh-boon-hahm