Verbseoul.
regular
비틀거리다biteulgeoridato stumble

To say to stumble politely in the present tense, use 비틀거려요 (bee-teul-guh-ryuh-yoh). Below is the full conjugation of 비틀거리다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
비틀거려
bee-teul-guh-ryuh
비틀거려요
bee-teul-guh-ryuh-yoh
비틀거립니다
bee-teul-guh-reem-nee-dah
Past
비틀거렸어
bee-teul-guh-ryuh-ssuh
비틀거렸어요
bee-teul-guh-ryuh-ssuh-yoh
비틀거렸습니다
bee-teul-guh-ryuh-sseum-nee-dah
Future
비틀거릴 거야
bee-teul-guh-reel- -guh-yah
비틀거릴 거예요
bee-teul-guh-reel- -guh-yae-yoh
비틀거릴 겁니다
bee-teul-guh-reel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
비틀거리세요
bee-teul-guh-ree-sae-yoh
Suggestion / Let's Polite (요)
비틀거려요
bee-teul-guh-ryuh-yoh
Question Polite (요)
비틀거려요?
bee-teul-guh-ryuh-yoh-?
Connective “and” — (고)
비틀거리고
bee-teul-guh-ree-goh
Conditional “if” — (면)
비틀거리면
bee-teul-guh-ree-myuhn
Noun form — (기)
비틀거림
bee-teul-guh-reem