Verbseoul.
ㅅ irregular
결정짓다gyeoljeongjitdato make a decision, to decide

To say to make a decision, to decide politely in the present tense, use 결정지어요 (gyuhl-chuhng-chee-uh-yoh). Below is the full conjugation of 결정짓다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
결정지어
gyuhl-chuhng-chee-uh
결정지어요
gyuhl-chuhng-chee-uh-yoh
결정짓습니다
gyuhl-chuhng-cheet-seum-nee-dah
Past
결정지었어
gyuhl-chuhng-chee-uh-ssuh
결정지었어요
gyuhl-chuhng-chee-uh-ssuh-yoh
결정지었습니다
gyuhl-chuhng-chee-uh-sseum-nee-dah
Future
결정지을 거야
gyuhl-chuhng-chee-eul- -guh-yah
결정지을 거예요
gyuhl-chuhng-chee-eul- -guh-yae-yoh
결정지을 겁니다
gyuhl-chuhng-chee-eul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
결정지으세요
gyuhl-chuhng-chee-eu-sae-yoh
Suggestion / Let's Polite (요)
결정지어요
gyuhl-chuhng-chee-uh-yoh
Question Polite (요)
결정지어요?
gyuhl-chuhng-chee-uh-yoh-?
Connective “and” — (고)
결정짓고
gyuhl-chuhng-cheet-goh
Conditional “if” — (면)
결정지으면
gyuhl-chuhng-chee-eu-myuhn
Noun form — (기)
결정지음
gyuhl-chuhng-chee-eum