PART 1 Grammar and Rules
Chapter 01 | Language and the Korean Language
01 Language

Chapter 02 | Sound
01 Phonological System and Changes
02 Standard Pronunciation

Chapter 03 | Form
01 Word formation
02 Parts of speech
03 Korean spelling
04 Standard Language Regulations

Chapter 04 | Syntax
01 Understanding sentences
02 Correct expression

Chapter 05 | Meaning and Discourse
01 Meaning
02 Discourse

Chapter 06 | Foreign Words and Romanization
01 Foreign word notation
02 Romanization

Chapter 07 | Classical Grammar
01 Ancient Korean
02 Middle Korean and Hunminjeongeum
03 Modern Korean

PART 2 Vocabulary, Chinese Characters, and Idioms
Chapter 01 | Chinese Characters and Idioms
01 Chinese characters
02 Idioms
03 Idioms by topic

Chapter 02 | Confusing Vocabulary
01 Confusing Vocabulary

Chapter 03 | Native and Purified Words
01 Distinction between native and foreign words
02 Unfamiliar native language
03 Purified language
04 Idiomatic Expressions

PART 3 LITERATURE
Chapter 01 | Approaches by Literature Type
01 Concept of Poetry Prophecy
02 Prose Prophecy Concept

Chapter 02 | Essential Classical Poetry for Textbooks

Chapter 03 | Essential Classical Prose for Textbooks

Chapter 04 | Textbook Essential Modern Poetry

Chapter 05 | Essential Modern Prose for Textbooks

Answer and explanation

2026 Lee Yu-jin Korean Language Algorithm Expansion Pack
Let's compete with a smart algorithm!

『2026 Lee Yu-jin Korean Algorithm Expansion Pack』 is a textbook that condenses the core contents of [Grammar, Rules, Vocabulary, Chinese Characters, and Literature] into one volume.
This book has the following area-specific features:

[Grammar/Rules]
- We have linked theoretical grammar and grammar rules so that you do not have to study them separately.
Now you can learn efficiently by learning the principles and seeing examples all at once.

[Vocabulary/Chinese characters]
- For test takers who find Chinese characters and four-character idioms burdensome, it was designed so that after memorizing the basic radicals, they can memorize the semantic network from individual characters to Chinese characters, from Chinese characters to idioms, and from idioms to individual characters again.
You can read the textbook three times.
- Confusing vocabulary, native Korean words, and pure Korean words are presented in a detailed and fun way based on textbooks and past exam questions.

[literature]
- Literature has been carefully selected from essential textbook works and past exam passages, allowing for detailed analysis of the works and problem solving (including past exam passages) all at once.