Verbseoul.
regular
덜컹이다deolkeongidato rattle, to clatter

To say to rattle, to clatter politely in the present tense, use 덜컹여요 (duhl-kuhng-yuh-yoh). Below is the full conjugation of 덜컹이다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
덜컹여
duhl-kuhng-yuh
덜컹여요
duhl-kuhng-yuh-yoh
덜컹입니다
duhl-kuhng-eem-nee-dah
Past
덜컹였어
duhl-kuhng-yuh-ssuh
덜컹였어요
duhl-kuhng-yuh-ssuh-yoh
덜컹였습니다
duhl-kuhng-yuh-sseum-nee-dah
Future
덜컹일 거야
duhl-kuhng-eel- -guh-yah
덜컹일 거예요
duhl-kuhng-eel- -guh-yae-yoh
덜컹일 겁니다
duhl-kuhng-eel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
덜컹이세요
duhl-kuhng-ee-sae-yoh
Suggestion / Let's Polite (요)
덜컹여요
duhl-kuhng-yuh-yoh
Question Polite (요)
덜컹여요?
duhl-kuhng-yuh-yoh-?
Connective “and” — (고)
덜컹이고
duhl-kuhng-ee-goh
Conditional “if” — (면)
덜컹이면
duhl-kuhng-ee-myuhn
Noun form — (기)
덜컹임
duhl-kuhng-eem