Verbseoul.
하다 verb
두절하다dujeolhadato interrupt, to stop (traffic or communication)

To say to interrupt, to stop (traffic or communication) politely in the present tense, use 두절해요 (doo-chuhl-hae-yoh). Below is the full conjugation of 두절하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
두절해
doo-chuhl-hae
두절해요
doo-chuhl-hae-yoh
두절합니다
doo-chuhl-hahm-nee-dah
Past
두절했어
doo-chuhl-hae-ssuh
두절했어요
doo-chuhl-hae-ssuh-yoh
두절했습니다
doo-chuhl-hae-sseum-nee-dah
Future
두절할 거야
doo-chuhl-hahl- -guh-yah
두절할 거예요
doo-chuhl-hahl- -guh-yae-yoh
두절할 겁니다
doo-chuhl-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
두절하세요
doo-chuhl-hah-sae-yoh
Suggestion / Let's Polite (요)
두절해요
doo-chuhl-hae-yoh
Question Polite (요)
두절해요?
doo-chuhl-hae-yoh-?
Connective “and” — (고)
두절하고
doo-chuhl-hah-goh
Conditional “if” — (면)
두절하면
doo-chuhl-hah-myuhn
Noun form — (기)
두절함
doo-chuhl-hahm