Verbseoul.
하다 verb (adj)
으스스하다euseuseuhadacreepy

To say creepy politely in the present tense, use 으스스해요 (eu-seu-seu-hae-yoh). Below is the full conjugation of 으스스하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
으스스해
eu-seu-seu-hae
으스스해요
eu-seu-seu-hae-yoh
으스스합니다
eu-seu-seu-hahm-nee-dah
Past
으스스했어
eu-seu-seu-hae-ssuh
으스스했어요
eu-seu-seu-hae-ssuh-yoh
으스스했습니다
eu-seu-seu-hae-sseum-nee-dah
Future
으스스할 거야
eu-seu-seu-hahl- -guh-yah
으스스할 거예요
eu-seu-seu-hahl- -guh-yae-yoh
으스스할 겁니다
eu-seu-seu-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
으스스하세요
eu-seu-seu-hah-sae-yoh
Suggestion / Let's Polite (요)
으스스해요
eu-seu-seu-hae-yoh
Question Polite (요)
으스스해요?
eu-seu-seu-hae-yoh-?
Connective “and” — (고)
으스스하고
eu-seu-seu-hah-goh
Conditional “if” — (면)
으스스하면
eu-seu-seu-hah-myuhn
Noun form — (기)
으스스함
eu-seu-seu-hahm