Usages of ~haeseo
자료를 복사해서 교수님께 제출해야 해요.jaryoreul boksahaeseo gyosunimkke jechulhaeya haeyo.
You have to copy the materials and submit them to the professor.
숙제를 해서 친구와 놀아요.sukjereul haeseo chinguwa norayo.
I do my homework and then play with my friends.
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