YUNOVA · Spoken Korean

Module 9: Intermediate Korean grammar

Notes for offline study · 3 November 2026

Korean past and future tense

Key points

  • Past tense adds -았/었어요 to the verb stem, for example 갔어요.
  • Future or intention often uses -(으)ㄹ 거예요, for example 갈 거예요.
  • The vowel in the stem decides which ending form is used.

Connecting sentences with go and seo

Key points

  • -고 links actions or facts, like 'and'.
  • -아/어서 links a cause or a sequence where the first action leads to the next.
  • -아/어서 is not used with commands or suggestions for reasons.

Want to and can in Korean

Key points

  • -고 싶어요 expresses what you want to do.
  • -(으)ㄹ 수 있어요 means can; -(으)ㄹ 수 없어요 means cannot.
  • 못 before a verb is a short way to say you cannot do it.

Giving reasons with nikka and neunde

Key points

  • -(으)니까 gives a reason and can be followed by commands or suggestions.
  • -는데 sets background or contrast before the main point.
  • Both endings attach to the verb stem in the first clause.