Verbseoul.
ㄷ irregular
엿듣다yeotdeutdato eavesdrop, to overhear, to listen secretly

To say to eavesdrop, to overhear, to listen secretly politely in the present tense, use 엿들어요 (yuh-tteu-ruh-yoh). Below is the full conjugation of 엿듣다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
엿들어
yuh-tteu-ruh
엿들어요
yuh-tteu-ruh-yoh
엿듣습니다
yuh-tteut-seum-nee-dah
Past
엿들었어
yuh-tteu-ruh-ssuh
엿들었어요
yuh-tteu-ruh-ssuh-yoh
엿들었습니다
yuh-tteu-ruh-sseum-nee-dah
Future
엿들을 거야
yuh-tteu-reul- -guh-yah
엿들을 거예요
yuh-tteu-reul- -guh-yae-yoh
엿들을 겁니다
yuh-tteu-reul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
엿들으세요
yuh-tteu-reu-sae-yoh
Suggestion / Let's Polite (요)
엿들어요
yuh-tteu-ruh-yoh
Question Polite (요)
엿들어요?
yuh-tteu-ruh-yoh-?
Connective “and” — (고)
엿듣고
yuh-tteut-goh
Conditional “if” — (면)
엿들으면
yuh-tteu-reu-myuhn
Noun form — (기)
엿들음
yuh-tteu-reum