외우다([oe-u-da/memorize]) means to keep in mind, learn by heart. In polite speech, say 외워요([oe-wo-yo]).
외웠어요([oe-wo-sseo-yo/memorized]) is the polite past form. Example: 외웠어요 (I memorized).
외워야 해요([oe-wo-ya hae-yo/have to memorize]) means you must keep it in mind. Example: 외워야 해요 (I have to memorize).
외우다([oe-u-da/memorize]) means "to memorize". To keep in mind, learn by heart, commit to memory.
1. Daily: “외워요? (oe-wo-yo)” Do you memorize?
2. Past: 외웠어요([oe-wo-sseo-yo/memorized]) memorized.
3. Duty: 외워야 해요([oe-wo-ya hae-yo/have to memorize]) have to memorize.
4. Warning: 외우지 마세요([oe-u-ji ma-se-yo/don't memorize]) don't memorize.
A: How do you memorize Korean words?
B: 매일 10개씩 외워요. 쓰면서 외워요. B: mae-il yeol gae-ssik oe-wo-yo. sseu-myeon-seo oe-wo-yo.B: I memorize 10 every day. I memorize while writing.
A: 쉽게 외워요? A: swip-ge oe-wo-yo?A: Do you memorize easily?
B: 아니요, 어려워요. 반복해서 외워요. B: a-ni-yo, eo-ryeo-wo-yo. ban-bok-hae-seo oe-wo-yo.B: No, it's difficult. I memorize by repeating. - 외우다([oe-u-da/memorize])
A: Did you memorize words yesterday?
B: 네, 20개 외웠어요. B: ne, seup-mu-gae oe-wo-sseo-yo.B: Yes, I memorized 20.
A: 다 외웠어요? A: da oe-wo-sseo-yo?A: Did you memorize all?
B: 네, 시험 전에 다 외웠어요. B: ne, si-heom jeon-e da oe-wo-sseo-yo.B: Yes, I memorized all before the exam. - 외웠어요([oe-wo-sseo-yo/memorized])
A: By when do you have to memorize safety rules?
B: 내일까지 외워야 해요. 교육 때 시험 봐요. B: nae-il-kka-ji oe-wo-ya hae-yo. gyo-yuk ttae si-heom bwa-yo.B: I have to memorize by tomorrow. There's a test during training.
A: 다 외워야 해요? A: da oe-wo-ya hae-yo?A: Do you have to memorize all?
B: 네, 중요한 거라서 다 외워야 해요. B: ne, jung-yo-han geo-ra-seo da oe-wo-ya hae-yo.B: Yes, it's important so I have to memorize all. - 외워야 해요([oe-wo-ya hae-yo/have to memorize])
• 외우다([oe-u-da/memorize]) memorize
- 외웠어요([oe-wo-sseo-yo/memorized]) memorized
- 외우고 싶어요([oe-u-go si-peo-yo/want to memorize]) want to memorize
- 외워야 해요([oe-wo-ya hae-yo/have to memorize]) have to memorize
- 외우지 마세요([oe-u-ji ma-se-yo/don't memorize]) don't memorize