Korean Grammar Hub

Understand Korean Grammar Faster

Browse the grammar system by level and category, then open clear explanations with practical examples.

397 Total Rules
78 Chapters
6 CEFR level
Understand Korean Grammar Faster

New to Korean Grammar?

Start with the basics and build your foundation step by step.

Start Here
Active filters: CEFR level: C2
C2 Particles

Korean Particle -(이)야: 'Of course... but'

The -(이)야 particle lets you concede an obvious truth to powerfully set up a contrasting, usually negative, reality.

  • Attaches to nouns: -야 (vowel), -이야 (consonant).
  • Expresses 'Of course X is true, BUT...'
10 examples 8 exercises 8 FAQ
Read rule
C2 Advanced Syntax

In terms of... (-기로는)

Use -기로는 to highlight a specific quality as the definitive metric for ranking or evaluating something.

  • Used to set a specific adjective/verb as the stand...
  • Indicates 'in terms of being...' or 'when it comes...
10 examples 8 exercises 8 FAQ
Read rule
C2 Conjunctions & Connectors

Unexpected Results: Even After Doing... (-고도)

Use `-고도` to link a completed action with a surprising or contradictory result that follows it.

  • Expresses an unexpected or contradictory result af...
  • Used when the second clause defies common logic.
10 examples 8 exercises 8 FAQ
Read rule
C2 Conjunctions & Connectors

The Formal 'But': Using -되 for Provisos

Use -되 to state a fact or grant permission while strictly attaching a formal condition or proviso.

  • Formal connective meaning 'provided that' or 'whil...
  • Used in written documents, laws, instructions, and...
10 examples 8 exercises 8 FAQ
Read rule
C2 Conjunctions & Connectors

Formal Addition: `-려니와` (not only... but also)

This is a literary pattern for recognizing in classic texts; use `-(으)ㄹ 뿐만 아니라` in all modern contexts.

  • A formal, literary way to say 'not only... but als...
  • Connects two facts, with the first being a given.
10 examples 8 exercises 1 FAQ
Read rule
C2 Conjunctions & Connectors

Elegant Additions: Beyond 'Not Only' (-거니와)

Use `-거니와` to elegantly stack formal facts and sound like a sophisticated Korean language expert.

  • Formal connective meaning 'not only... but also' o...
  • Used in academic writing, speeches, and profession...
10 examples 8 exercises 8 FAQ
Read rule
C2 Conjunctions & Connectors

Korean Connective: 'As I See It' (-건대)

Use -건대 to frame opinions as being grounded in your specific observations, thoughts, or sincere hopes.

  • Connects perception verbs (see/hear/hope) to a fol...
  • Means 'As I see/hear/hope' or 'Based on what I...'
10 examples 8 exercises 8 FAQ
Read rule
C2 Sentence Endings

Deep Concern: Lest... (-ㄹ/을세라)

Express deep, poetic concern or fear that something might happen, usually followed by a cautious, preventative action.

  • Used for high-stakes, apprehensive concern about a...
  • Common in literature, poetry, and formal or dramat...
11 examples 8 exercises 8 FAQ
Read rule
C2 Sentence Endings

Literary Causal Discovery (-나니)

Use -나니 to sound like a profound philosopher declaring a universal truth, not for daily excuses.

  • Used for profound discoveries.
  • Means 'since I see/find that'.
10 examples 8 exercises 8 FAQ
Read rule
C2 Sentence Endings

Poetic Declaration (-노라)

Use -노라 to add a solemn, poetic, or authoritative 'I hereby declare' tone to your verbs, primarily in writing or speeches.

  • Used for solemn declarations
  • Means 'I hereby state'
10 examples 8 exercises 8 FAQ
Read rule
C2 Sentence Endings

Solemn Promises to Juniors: -(으)마

An authoritative, literary ending for making promises to those of lower social rank with sincere volition.

  • Used by superiors to inferiors to make a solemn pr...
  • First-person only; expresses the speaker's strong...
11 examples 1 exercises 1 FAQ
Read rule
C2 Sentence Endings

Archaic Humble Declarative (-나이다)

Use -나이다 for hyper-humble, archaic declarations, typically seen in historical dramas, prayers, or classic literature.

  • Archaic humble declarative ending used in historic...
  • Expresses the highest level of humility toward a K...
10 examples 8 exercises 8 FAQ
Read rule

Why Learn Korean Grammar?

Grammar is the foundation of language fluency. Without understanding grammar patterns, you can memorize vocabulary but struggle to form correct sentences. Here's why structured grammar study matters:

Build Accurate Sentences

Move beyond memorized phrases. Understand the rules so you can create original, correct sentences in any situation.

Pass Language Exams

Grammar is tested in every major language exam — IELTS, DELE, DELF, JLPT, HSK, TOPIK, and more. Our CEFR-aligned curriculum maps directly to exam requirements.

Understand Native Speakers

Knowing grammar helps you parse complex sentences, understand nuance, and follow conversations even when speakers use advanced constructions.

Progress Faster

Students who study grammar systematically reach fluency faster than those who rely on immersion alone. Structure accelerates learning.

How Our Korean Grammar Course Works

1

Choose Your Level

Start with your CEFR level — from A0 Zero Point to C2 Mastery. Not sure? Begin at A0 and progress at your own pace.

2

Study Structured Chapters

Each chapter covers a grammar topic with clear explanations, pattern tables, and real-world example sentences.

3

Practice with Exercises

Test your understanding with interactive exercises — fill-in-the-blank, multiple choice, sentence building, and translation practice.

4

Track & Progress

Your progress is saved automatically. Complete chapters, unlock new levels, and watch your grammar mastery grow.

Frequently Asked Questions About Korean Grammar

SubLearn covers 397 Korean grammar rules organized across 6 CEFR proficiency levels (from A1 to C2), spanning 78 structured chapters. Each rule includes clear explanations, real-world examples, and interactive practice exercises.

Our Korean grammar curriculum covers CEFR levels from A1 to C2. Each level is designed to match your current proficiency — beginners start with basic sentence patterns at A1, while advanced learners tackle nuanced structures at C1-C2.

Yes! All Korean grammar rules, explanations, and examples are completely free to access. You can browse the full curriculum, read detailed explanations, and practice with exercises at no cost.

Grammar is organized into 78 thematic chapters following the CEFR framework. Each chapter groups related rules together — for example, verb tenses, sentence structure, or particles — so you can learn related concepts in a logical sequence.

Yes! Create a free account to track which grammar rules you've studied, see your progress across all CEFR levels, and pick up exactly where you left off. Your learning progress syncs across devices.