선택하다([seon-taek-ha-da/select]) means to choose one. In polite speech, say 선택해요([seon-tae-kae-yo]).
선택했어요([seon-tae-kae-sseo-yo/selected]) is the polite past form. Example: 선택했어요 (I selected it).
선택해야 해요([seon-tae-kae-ya hae-yo/have to select]) means you must select. Example: 선택해야 해요 (I have to select).
선택하다([seon-taek-ha-da/select]) means "to select". To choose, pick, decide on one.
1. Daily: “뭘 선택해요? (mwol seon-tae-kae-yo)” What do you select?
2. Past: 선택했어요([seon-tae-kae-sseo-yo/selected]) selected.
3. Duty: 선택해야 해요([seon-tae-kae-ya hae-yo/have to select]) have to select.
4. Warning: 선택하지 마세요([seon-taek-ha-ji ma-se-yo/don't select]) don't select.
A: What do you select?
B: 이걸 선택해요. B: i-geol seon-tae-kae-yo.B: I select this one.
A: 왜 선택해요? A: wae seon-tae-kae-yo?A: Why do you select it?
B: 좋아서 선택해요. B: jo-a-seo seon-tae-kae-yo.B: I select it because I like it. - 선택하다([seon-taek-ha-da/select])
A: What did you select?
B: 이걸 선택했어요. B: i-geol seon-tae-kae-sseo-yo.B: I selected this one.
A: 언제 선택했어요? A: eon-je seon-tae-kae-sseo-yo?A: When did you select it?
B: 어제 선택했어요. B: eo-je seon-tae-kae-sseo-yo.B: I selected it yesterday. - 선택했어요([seon-tae-kae-sseo-yo/selected])
A: When do you have to select?
B: 오늘 선택해야 해요. B: o-neul seon-tae-kae-ya hae-yo.B: I have to select today.
A: 뭘 선택해야 해요? A: mwol seon-tae-kae-ya hae-yo?A: What do you have to select?
B: 선물을 선택해야 해요. B: seon-mu-reul seon-tae-kae-ya hae-yo.B: I have to select a gift. - 선택해야 해요([seon-tae-kae-ya hae-yo/have to select])
• 선택하다([seon-taek-ha-da/select]) select
- 선택했어요([seon-tae-kae-sseo-yo/selected]) selected
- 선택하고 싶어요([seon-tae-ka-go si-peo-yo/want to select]) want to select
- 선택해야 해요([seon-tae-kae-ya hae-yo/have to select]) have to select
- 선택하지 마세요([seon-taek-ha-ji ma-se-yo/don't select]) don't select