Verbseoul.
하다 verb (adj)
음란하다eumranhadaobscene, lewd

To say obscene, lewd politely in the present tense, use 음란해요 (eum-nahn-hae-yoh). Below is the full conjugation of 음란하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
음란해
eum-nahn-hae
음란해요
eum-nahn-hae-yoh
음란합니다
eum-nahn-hahm-nee-dah
Past
음란했어
eum-nahn-hae-ssuh
음란했어요
eum-nahn-hae-ssuh-yoh
음란했습니다
eum-nahn-hae-sseum-nee-dah
Future
음란할 거야
eum-nahn-hahl- -guh-yah
음란할 거예요
eum-nahn-hahl- -guh-yae-yoh
음란할 겁니다
eum-nahn-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
음란하세요
eum-nahn-hah-sae-yoh
Suggestion / Let's Polite (요)
음란해요
eum-nahn-hae-yoh
Question Polite (요)
음란해요?
eum-nahn-hae-yoh-?
Connective “and” — (고)
음란하고
eum-nahn-hah-goh
Conditional “if” — (면)
음란하면
eum-nahn-hah-myuhn
Noun form — (기)
음란함
eum-nahn-hahm