원하다([won-ha-da/want]) means you wish for something, you hope to have it. In polite speech, say 원해요([won-hae-yo]).
원했어요([won-hae-sseo-yo/wanted]) is the polite past form. Example: 어제 원했어요 (I wanted it yesterday).
원해야 해요([won-hae-ya hae-yo/have to want]) means you must wish for it. Example: 원해야 해요 (You have to want it).
원하다([won-ha-da/want]) means "to want". It is used when your heart wishes for something.
1. Daily: “원해요? (won-hae-yo)”
2. Past: 원했어요([won-hae-sseo-yo/wanted]) wanted.
3. Duty: 원해야 해요([won-hae-ya hae-yo/have to want]) have to want.
4. Warning: 원하지 마세요([won-ha-ji ma-se-yo/don't want]) don't want.
A: What do you want?
B: 커피 원해요. B: keo-pi won-hae-yo.B: I want coffee.
A: 커피 원해요? A: keo-pi won-hae-yo?A: Do you want coffee?
B: 네, 원해요. B: ne, won-hae-yo.B: Yes, I want it. - 원하다([won-ha-da/want])
A: Did you want it yesterday?
B: 네, 원했어요. B: ne, won-hae-sseo-yo.B: Yes, I wanted it.
A: 얼마나 원했어요? A: eol-ma-na won-hae-sseo-yo?A: How much did you want it?
B: 많이 원했어요. B: ma-ni won-hae-sseo-yo.B: I wanted it a lot. - 원했어요([won-hae-sseo-yo/wanted])
A: Why do you have to want it?
B: 성공하려면요. B: seong-gong-ha-ryeo-myeon-yo.B: To succeed.
A: 정말 원해야 해요? A: jeong-mal won-hae-ya hae-yo?A: Do you really have to want it?
B: 네, 원해야 해요. B: ne, won-hae-ya hae-yo.B: Yes, I have to want it. - 원해야 해요([won-hae-ya hae-yo/have to want])
• 원하다([won-ha-da/want]) want
- 원했어요([won-hae-sseo-yo/wanted]) wanted
- 원하고 싶어요([won-ha-go si-peo-yo/want to want]) want to want
- 원해야 해요([won-hae-ya hae-yo/have to want]) have to want
- 원하지 마세요([won-ha-ji ma-se-yo/don't want]) don't want