출발하다([chul-bal-ha-da/depart]) means to leave a place to go somewhere. In polite speech, say 출발해요([chul-bal-hae-yo]) or 출발합니다. Often used for bus, train, airplane.
출발했어요([chul-bal-hae-sseo-yo/departed]) is the polite past form. Example: 버스가 방금 출발했어요 (The bus just departed).
출발해야 해요([chul-bal-hae-ya hae-yo/have to depart]) means you must leave now. Example: 비행기 때문에 지금 출발해야 해요 (I have to depart now because of the flight).
출발하다([chul-bal-ha-da/depart]) means "to depart". To leave a place to go somewhere, set off, start a trip.
1. Daily: “출발해요? (chul-bal-hae-yo)” Do you depart?
2. Past: 출발했어요([chul-bal-hae-sseo-yo/departed]) departed.
3. Duty: 출발해야 해요([chul-bal-hae-ya hae-yo/have to depart]) have to depart.
4. Warning: 출발하지 마세요([chul-bal-ha-ji ma-se-yo/don't depart]) don't depart.
A: When does the bus depart?
B: 10시에 출발해요. B: yeol si-e chul-bal-hae-yo.B: It departs at 10 o'clock.
A: 어디서 출발해요? A: eo-di-seo chul-bal-hae-yo?A: Where does it depart from?
B: 2번 정류장에서 출발해요. B: i-beon jeong-nyu-jang-e-seo chul-bal-hae-yo.B: It departs from stop number 2. - 출발하다([chul-bal-ha-da/depart])
A: Did the bus depart?
B: 네, 방금 출발했어요. B: ne, bang-geum chul-bal-hae-sseo-yo.B: Yes, it just departed.
A: 기차도 출발했어요? A: gi-cha-do chul-bal-hae-sseo-yo?A: Did the train also depart?
B: 네, 5분 전에 출발했어요. B: ne, o-bun jeon-e chul-bal-hae-sseo-yo.B: It departed 5 minutes ago. - 출발했어요([chul-bal-hae-sseo-yo/departed])
A: Why do you have to depart?
B: 비행기 때문에 지금 출발해야 해요. B: bi-haeng-gi ttae-mu-ne ji-geum chul-bal-hae-ya hae-yo.B: I have to depart now because of the flight.
A: 언제까지 공항에 가야 해요? A: eon-je-kka-ji gong-hang-e ga-ya hae-yo?A: By when do you have to go to the airport?
B: 2시간 안에 가야 해요. B: du si-gan a-ne ga-ya hae-yo.B: I have to go within 2 hours. - 출발해야 해요([chul-bal-hae-ya hae-yo/have to depart])
• 출발하다([chul-bal-ha-da/depart]) depart / set off / leave
- 출발했어요([chul-bal-hae-sseo-yo/departed]) departed
- 출발하고 싶어요([chul-bal-ha-go si-peo-yo/want to depart]) want to depart
- 출발해야 해요([chul-bal-hae-ya hae-yo/have to depart]) have to depart
- 출발하지 마세요([chul-bal-ha-ji ma-se-yo/don't depart]) don't depart