training -기beforeorder 【Training㉖】Let’s traning using “-전” to talk about “before ~”. Basic -기beforeorder 【before/-전】Let’s try to express “before ~” in Korean. Expression -기formulamath 【Addition, subtraction problems.】Let’s read the formula in Korean. training -기easyhardnounization 【Training⑱】Let’s traning using “-기” to express verbs as nouns. Basic -기easyhardnounization 【-기】Learn how to express verbs as nouns.