Verbseoul.
하다 verb
충돌하다chungdolhadato collide

To say to collide politely in the present tense, use 충돌해요 (choong-dohl-hae-yoh). Below is the full conjugation of 충돌하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
충돌해
choong-dohl-hae
충돌해요
choong-dohl-hae-yoh
충돌합니다
choong-dohl-hahm-nee-dah
Past
충돌했어
choong-dohl-hae-ssuh
충돌했어요
choong-dohl-hae-ssuh-yoh
충돌했습니다
choong-dohl-hae-sseum-nee-dah
Future
충돌할 거야
choong-dohl-hahl- -guh-yah
충돌할 거예요
choong-dohl-hahl- -guh-yae-yoh
충돌할 겁니다
choong-dohl-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
충돌하세요
choong-dohl-hah-sae-yoh
Suggestion / Let's Polite (요)
충돌해요
choong-dohl-hae-yoh
Question Polite (요)
충돌해요?
choong-dohl-hae-yoh-?
Connective “and” — (고)
충돌하고
choong-dohl-hah-goh
Conditional “if” — (면)
충돌하면
choong-dohl-hah-myuhn
Noun form — (기)
충돌함
choong-dohl-hahm