I .
Phonology

1.
Phonological system
2.
Changes in phonemes ① Replacement
3.
Changes in phonemes ② Dropping out
4.
Phonological changes ③ Contraction
5.
Changes in phonemes ④ Addition
6.
Phonological changes ⑤ Comparison of replacement, deletion, contraction, and addition
Unit Comprehensive Problems
Practice exam questions

Ⅱ.
word

1.
Morphemes and words
2.
Word formation
3.
Part of speech
Unit comprehensive questions
Practice exam questions

Ⅲ.
sentence

1.
sentence elements
2.
Sentence structure
3.
Grammar element ① Concluding expression
4.
Grammar Element ② Honorific Expression
5.
Grammar Element ③ Time Expression
6.
Grammar Element ④ Passive Expression, Causative Expression
7.
Grammar Element ⑤ Negative Expression
8.
Accurate sentence expression
Unit comprehensive questions
Practice exam questions

Ⅳ.
Meaning of words

1.
Meaning of words
2.
semantic relationships between words
3.
Types of words
Unit comprehensive questions
Practice exam questions

V.
Language regulations

1.
Korean spelling
2.
Standard pronunciation
3.
Foreign word notation
4.
Romanization
Unit Comprehensive Problems
Practice exam questions

Ⅵ.
Korean language history

1.
The principles of Hunminjeongeum
2.
notation
3.
Phonemes and phonetic changes
4.
inspection
5.
Closing expression
6.
Honorific expressions
Unit Comprehensive Problems
Practice exam questions

* Difficult grammar knowledge presented as 64 essential concepts

* A total of 2,480 practice questions are provided.
- Analysis of examples frequently appearing in school reports and the CSAT
- Detailed explanation provided

* Comprehensive learning through unit comprehensive problems

* Includes 227 practice exam questions
- Selected past college entrance exam and mock exam questions for high school seniors from 2012 to 2025
- Selected past questions from the National Academic Achievement Test for high school seniors (2013-2024)
- Includes selected past questions from the National Academic Achievement Test for high school seniors from 2007 to 2024.
- Includes selected past questions from the National Academic Achievement Test for high school seniors from 2005 to 2024