잠그다([jam-geu-da/lock]) means to lock a door, window, locker, car, gate. In polite speech, say 잠가요([jam-ga-yo]) or 잠급니다([jam-geum-ni-da]). Opposite is 열다([yeol-da/open]) or 풀다.
잠갔어요([jam-ga-sseo-yo/locked]) is the polite past form. Example: 문을 잠갔어요 (I locked the door) - very common at factory dorm, warehouse. 퇴근 전에 창고를 잠갔어요.
잠그지 마세요([jam-geu-ji ma-se-yo/don't lock]) is the polite negative imperative. Example: 아직 잠그지 마세요 → 잠그지 마세요([jam-geu-ji ma-se-yo/don't lock]) - people are still inside, don't lock the door yet.
잠그다([jam-geu-da/lock]) means "to lock" - to lock a door, window, locker, car, gate. Essential security verb for factory dorm, warehouse, office. Opposite of 열다.
1. Basic: “문을 잠가요 (mu-neul jam-ga-yo)” I lock the door
2. Past: 잠갔어요([jam-ga-sseo-yo/locked]) - 창고를 잠갔어요
3. Negative: 잠그지 마세요([jam-geu-ji ma-se-yo/don't lock]) - 아직 안에 사람이 있어서 잠그지 마세요.
4. Obligation: 잠가야 해요([jam-ga-ya hae-yo/have to lock]) - 퇴근할 때 잠가야 해요.
A: Do you lock the door?
B: 네, 문을 잠가요. B: ne, mu-neul jam-ga-yo.B: Yes, I lock the door. - 잠그다([jam-geu-da/lock])
A: Did you lock it?
B: 네, 잠갔어요. B: ne, jam-ga-sseo-yo.B: Yes, I locked it.
A: 무엇을 잠갔어요? A: mu-eo-seul jam-ga-sseo-yo?A: What did you lock?
B: 창고를 잠갔어요. B: chang-go-reul jam-ga-sseo-yo.B: I locked the warehouse. - 잠갔어요([jam-ga-sseo-yo/locked])
A: Can I lock the door?
B: 아니요, 잠그지 마세요. B: a-ni-yo, jam-geu-ji ma-se-yo.B: No, please don't lock it.
A: 왜요? A: wae-yo?A: Why?
B: 아직 안에 사람이 있어요. B: a-jik a-ne sa-ra-mi i-sseo-yo.B: There are still people inside. - 잠그지 마세요([jam-geu-ji ma-se-yo/don't lock])
A: Do you have to lock it?
B: 네, 잠가야 해요. B: ne, jam-ga-ya hae-yo.B: Yes, I have to lock it.
A: 언제 잠가야 해요? A: eon-je jam-ga-ya hae-yo?A: When do you have to lock it?
B: 나갈 때 잠가야 해요. B: na-gal ttae jam-ga-ya hae-yo.B: I have to lock it when going out. - 잠가야 해요([jam-ga-ya hae-yo/have to lock])
• 잠그다([jam-geu-da/lock]) lock
- 잠갔어요([jam-ga-sseo-yo/locked]) locked
- 잠그고 싶어요([jam-geu-go si-peo-yo/want to lock]) want to lock
- 잠가야 해요([jam-ga-ya hae-yo/have to lock]) have to lock
- 잠그지 마세요([jam-geu-ji ma-se-yo/don't lock]) don't lock