더하다([deo-ha-da/add]) means to put more, to add, to increase. In polite speech, say 더해요([deo-hae-yo]) or 더합니다.
더했어요([deo-hae-sseo-yo/added]) is the polite past form. Example: 소금을 조금 더했어요 (I added a little salt).
더하다([deo-ha-da]) is everyday add/more. 추가하다([chu-ga-ha-da]) is more formal for adding items to a list or order - both used in EPS-TOPIK.
더하다([deo-ha-da/add]) means "to add / to increase". To put more, to add extra.
1. Cooking: “소금을 조금 더해요 (so-geum-eul jo-geum deo-hae-yo)” I add a little salt.
2. Past: 더했어요([deo-hae-sseo-yo/added]) - 두 스푼 더했어요 (added two spoons).
3. Wish: 더하고 싶어요([deo-ha-go si-peo-yo/want to add]) - 인원을 한 명 더하고 싶어요 (want to add one person).
4. Must: 물을 1리터 더해야 해요([deo-hae-ya hae-yo/have to add]) - Must add water.
A: How much sugar do you add?
B: 한 스푼 더해요. B: han seu-pun deo-hae-yo.B: I add one spoon.
A: 언제 더해요? A: eon-je deo-hae-yo?A: When do you add it?
B: 마지막에 더해요. B: ma-ji-ma-ge deo-hae-yo.B: I add it at the end. - 더하다([deo-ha-da/add])
A: What did you add yesterday?
B: 소금을 조금 더했어요. B: so-geum-eul jo-geum deo-hae-sseo-yo.B: I added a little salt.
A: 얼마나 더했어요? A: eol-ma-na deo-hae-sseo-yo?A: How much did you add?
B: 두 스푼 더했어요. B: du seu-pun deo-hae-sseo-yo.B: I added two spoons. - 더했어요([deo-hae-sseo-yo/added])
A: Why do you have to add?
B: 맛이 싱거워서 더해야 해요. B: ma-si sing-geo-wo-seo deo-hae-ya hae-yo.B: I have to add because taste is bland.
A: 얼마나 더해야 해요? A: eol-ma-na deo-hae-ya hae-yo?A: How much do you have to add?
B: 물을 1리터 더해야 해요. B: mu-reul il ri-teo deo-hae-ya hae-yo.B: I have to add 1 liter of water. - 더해야 해요([deo-hae-ya hae-yo/have to add])
• 더하다([deo-ha-da/add]) add / increase / put more
- 더했어요([deo-hae-sseo-yo/added]) added
- 더하고 싶어요([deo-ha-go si-peo-yo/want to add]) want to add
- 더해야 해요([deo-hae-ya hae-yo/have to add]) have to add
- 더하지 마세요([deo-ha-ji ma-se-yo/don't add]) don't add