확인되다([hwag-in-doe-da/be confirmed]) means to be verified or checked. In polite speech, say 확인돼요([hwag-in-dwae-yo]).
확인됐어요([hwag-in-dwae-sseo-yo/was confirmed]) is the polite past form. Example: 확인됐어요 (It was confirmed / verified).
확인돼야 해요([hwag-in-dwae-ya hae-yo/have to be confirmed]) means it must be verified. Example: 확인돼야 해요 (It has to be confirmed).
확인되다([hwag-in-doe-da/be confirmed]) means "to be confirmed". To be verified, checked, validated.
1. Daily: “확인돼요? (hwag-in-dwae-yo)” Is it confirmed?
2. Past: 확인됐어요([hwag-in-dwae-sseo-yo/was confirmed]) was confirmed.
3. Duty: 확인돼야 해요([hwag-in-dwae-ya hae-yo/have to be confirmed]) have to be confirmed.
4. Warning: 확인되지 마세요([hwag-in-doe-ji ma-se-yo/don't be confirmed]) don't be confirmed.
A: Is it confirmed?
B: 네, 확인돼요. B: ne, hwag-in-dwae-yo.B: Yes, it is confirmed.
A: 언제 확인돼요? A: eon-je hwag-in-dwae-yo?A: When is it confirmed?
B: 지금 확인돼요. B: ji-geum hwag-in-dwae-yo.B: It is confirmed now. - 확인되다([hwag-in-doe-da/be confirmed])
A: Was it confirmed?
B: 네, 확인됐어요. B: ne, hwag-in-dwae-sseo-yo.B: Yes, it was confirmed.
A: 언제 확인됐어요? A: eon-je hwag-in-dwae-sseo-yo?A: When was it confirmed?
B: 어제 확인됐어요. B: eo-je hwag-in-dwae-sseo-yo.B: It was confirmed yesterday. - 확인됐어요([hwag-in-dwae-sseo-yo/was confirmed])
A: When does it have to be confirmed?
B: 오늘 확인돼야 해요. B: o-neul hwag-in-dwae-ya hae-yo.B: It has to be confirmed today.
A: 어디서 확인돼야 해요? A: eo-di-seo hwag-in-dwae-ya hae-yo?A: Where does it have to be confirmed?
B: 사무실에서 확인돼야 해요. B: sa-mu-sil-e-seo hwag-in-dwae-ya hae-yo.B: It has to be confirmed at the office. - 확인돼야 해요([hwag-in-dwae-ya hae-yo/have to be confirmed])
• 확인되다([hwag-in-doe-da/be confirmed]) be confirmed
- 확인됐어요([hwag-in-dwae-sseo-yo/was confirmed]) was confirmed
- 확인되고 싶어요([hwag-in-doe-go si-peo-yo/want to be confirmed]) want to be confirmed
- 확인돼야 해요([hwag-in-dwae-ya hae-yo/have to be confirmed]) have to be confirmed
- 확인되지 마세요([hwag-in-doe-ji ma-se-yo/don't be confirmed]) don't be confirmed