Pre-study
Irregular verbs you must know

Chapter 01 Tense
Practice 01 Present Perfect
Practice 02 Past Perfect, Future Perfect

Chapter 02 Auxiliary Verbs
Practice 01 can, may, must, should
Practice 02 would rather, may as well, auxiliary verb have v-ed

Chapter 03 Passive Voice
Practice 01 Passive voice in sentences of type 4/type 5
Practice 02 Passive Voice to Watch Out for

Chapter 04 to-infinitive
Practice 01 Nominal Usage
Practice 02 Adjectival usage, adverbial usage
Practice 03 Infinitives used as objective complements
Practice 04 Subject, tense, and voice in meaning
Practice 05 to-infinitive structure, independent infinitive

Chapter 05 Gerunds
Practice 01 Use of Gerunds
Practice 02 Gerunds and to-infinitives used as objects, idiomatic expressions for gerunds

Chapter 06 Participle
Practice 01 Present Participle, Past Participle
Practice 02 Participle Phrases
Practice 03 Independent Participle Phrases, Impersonal Participle Phrases

Chapter 07 Conjunctions
Practice 01 Conjunctions used in adverbial clauses
Practice 02 Correlative Conjunctions, Indirect Questions

Chapter 08 Relatives
Practice 01 Relative Pronouns
Practice 02 Relative Adverbs
Practice 03 Continuous Use of Relatives
Practice 04 Complex Relatives: Usage Notes

Chapter 09 Comparison
Practice 01 Syntax using the original grade
Practice 02 Phrases using comparatives
Practice 03 Syntax using superlatives

Chapter 10 Family Law
Practice 01 Past Subjunctive, Past Perfect Subjunctive
Practice 02 I wish/as if subjunctive mood
Practice 03 Conditional sentences to watch out for

Chapter 11 Agreement and Speech
Practice 01 Number and Tense Agreement
Practice 02 Direct and Indirect Speech

Chapter 12 Special Syntax
Practice 01 Emphasis, Omission
Practice 02 Inversion

* Grammar Practice
We've summarized the essential grammar points you need to know.
You can immediately check the grammar content through examples most suitable for learning.
The content that must be memorized and reviewed is presented as PLUS.

* Grammar Check Up
We provide a variety of problem types that allow you to apply the grammar you have learned.
It is a structure that allows you to learn naturally without having to memorize grammar content through repeated practice.

* Writing Exercise
Through various types of writing problems, you can naturally practice the grammar you've learned in sentences and writing, and further build the foundation for writing in English on your own.

* Actual Test
The internal exam questions are organized into a total of 35 questions per chapter to ensure sufficient practice.
In particular, the proportion of frequently appearing types of questions and descriptive questions has been increased recently, enabling effective preparation for internal exams.
You can check the main multiple choice questions by solving the problems by marking them as 'frequently appearing' and 'difficulty level'.

* Descriptive Master
You can prepare for the descriptive questions in school exams by studying 10 questions per session.

* Workbook
By repeatedly studying a sufficient amount of writing/descriptive problems that are slightly more difficult than those in the main book, students can acquire the contents of the main book.
Additionally, the chapter test is designed to conclude each unit by solving the internal exam questions once more.