바꾸다([ba-kku-da/change]) means to change or swap. In polite speech, say 바꿔요([ba-kkwo-yo]).
바꿨어요([ba-kkwo-sseo-yo/changed]) is the polite past form. Example: 옷을 바꿨어요 (I changed my clothes).
바꿔야 해요([ba-kkwo-ya hae-yo/have to change]) means you must change. Example: 옷을 바꿔야 해요 (I have to change clothes).
바꾸다([ba-kku-da/change]) means "to change". It is used when you swap or replace something.
1. Daily: “옷을 바꿔요 (o-seul ba-kkwo-yo)”
2. Past: 바꿨어요([ba-kkwo-sseo-yo/changed]) changed.
3. Duty: 바꿔야 해요([ba-kkwo-ya hae-yo/have to change]) have to change.
4. Warning: 바꾸지 마세요([ba-kku-ji ma-se-yo/don't change]) don't change.
A: What do you change?
B: 옷을 바꿔요. B: o-seul ba-kkwo-yo.B: I change clothes.
A: 왜 바꿔요? A: wae ba-kkwo-yo?A: Why do you change?
B: 더러워서 바꿔요. B: deo-reo-wo-seo ba-kkwo-yo.B: I change because it's dirty. - 바꾸다([ba-kku-da/change])
A: Did you change yesterday?
B: 네, 바꿨어요. B: ne, ba-kkwo-sseo-yo.B: Yes, I changed.
A: 뭘 바꿨어요? A: mwol ba-kkwo-sseo-yo?A: What did you change?
B: 옷을 바꿨어요. B: o-seul ba-kkwo-sseo-yo.B: I changed my clothes. - 바꿨어요([ba-kkwo-sseo-yo/changed])
A: When do you have to change?
B: 지금 바꿔야 해요. B: ji-geum ba-kkwo-ya hae-yo.B: I have to change now.
A: 뭘 바꿔야 해요? A: mwol ba-kkwo-ya hae-yo?A: What do you have to change?
B: 옷을 바꿔야 해요. B: o-seul ba-kkwo-ya hae-yo.B: I have to change clothes. - 바꿔야 해요([ba-kkwo-ya hae-yo/have to change])
• 바꾸다([ba-kku-da/change]) change
- 바꿨어요([ba-kkwo-sseo-yo/changed]) changed
- 바꾸고 싶어요([ba-kku-go si-peo-yo/want to change]) want to change
- 바꿔야 해요([ba-kkwo-ya hae-yo/have to change]) have to change
- 바꾸지 마세요([ba-kku-ji ma-se-yo/don't change]) don't change