Key facts
- A noun modifier is a word or ending that describes a noun, and in Korean it always stands before that noun.
- This set has 8 lessons, from level A2 to B2.
- Time is shown by the ending: 먹는 음식 (food I eat), 먹은 음식 (food I ate), 먹을 음식 (food I will eat).
- Adjectives use -(으)ㄴ for the present: 작은 집 (a small house).
Listen to the sentence that shows the simplest modifier.
The next section defines a noun modifier and shows one verb with three endings.
What Is a Korean Noun Modifier?
A Korean noun modifier is a form that describes a noun, and it takes the place of English words such as "that I eat" or "pretty". A modifier is a word or ending that describes another word. English puts a one-word modifier before the noun ("a pretty flower") and a longer one after it ("the food that I ate"). Korean puts every modifier before the noun, however long it is, and it shows time on the modifier itself.
Grammar books call these forms the adnominal forms (관형사형). The adjective forms that come before nouns are introduced in korean adjective modifier, and this set goes deeper into the verb forms. The ending is added to the verb or adjective stem, so 먹다 becomes 먹는, 먹은 or 먹을.
| Ending | Time | Example | Meaning |
|---|---|---|---|
| -는 | now or habit | 먹는 음식 | food I eat |
| -(으)ㄴ | finished | 먹은 음식 | food I ate |
| -(으)ㄹ | not yet | 먹을 음식 | food I will eat |
| -던 | remembered | 먹던 음식 | food I used to eat |
The next section gives a route through the lessons.
Where Should You Start with Korean Noun Modifiers?
Start with the three single-tense endings, then compare them, then move to longer clauses and special words. Three stages cover the set.
- Stage 1: the three endings (A2). Read -는 noun modifier, then -(으)ㄴ adjective and past modifier, then -(으)ㄹ future modifier.
- Stage 2: the comparison (A2) and the fourth ending (B2). Read -는 vs -(으)ㄴ vs -(으)ㄹ. Then read the -던 retrospective modifier lesson.
- Stage 3: longer clauses and special words (A2 and B1). Read relative clauses in korean, 이다 modifier 인 이었던 일 and 있는 없는 modifier 재미있는.
Who can skip ahead? A learner who already says 예쁜 and 읽는 correctly can start at stage 2. A learner who meets 맛있는 in a menu can read the 있는/없는 lesson first, because it is short. The next section describes each lesson.
Browse by Topic
Each lesson below has a short description, one example sentence with Revised Romanization (RR, the official Latin spelling, shown only as an aid) and audio.
-는 Noun Modifier
The -는 lesson teaches the present modifier for action verbs. It covers habits and actions in progress, and it shows how ㄹ-stems drop their ㄹ. Example: 지금 읽는 책이에요. (jigeum ingneun chaegieyo.) "It is the book I am reading now." Spoken [지금 잉는 채기에요].
-(으)ㄴ Adjective and past Modifier
The -(으)ㄴ lesson teaches the ending that gives adjectives their present form and action verbs their past form. It covers consonant stems, ㄹ-stems and the main irregular verbs. Example: 어제 읽은 책이에요. (eoje ilgeun chaegieyo.) "It is the book I read yesterday." Spoken [어제 일근 채기에요].
-(으)ㄹ Future Modifier
The -(으)ㄹ lesson teaches the modifier for plans and things not yet done. It also explains the tense consonant that follows the ending and the patterns built on it. Example: 내일 먹을 음식이에요. (naeil meogeul eumsigieyo.) "It is the food I will eat tomorrow."
-던 Retrospective Modifier
The -던 lesson teaches the ending for a remembered or unfinished past. Example: 어릴 때 살던 집 (eoril ttae saldeon jip) "the house where I lived as a child".
-는 vs -(으)ㄴ vs -(으)ㄹ
The comparison lesson puts the three endings side by side on one verb and one adjective. It gives a decision rule: word class first, then time. Example: 먹는 음식, 먹은 음식, 먹을 음식 (meongneun eumsik, meogeun eumsik, meogeul eumsik) "food I eat, ate and will eat".
Relative Clauses in Korean
The relative-clause lesson teaches how a whole clause, with its own subject and object, can stand before a noun. Korean has no word for "who" or "that", so the modifier ending does the work. Example: 어제 만난 사람이 제 친구예요. (eoje mannan sarami je chinguyeyo.) "The person I met yesterday is my friend."
이다 Modifier 인 이었던 일
The 이다 lesson teaches the modifier forms of the verb "to be". It shows how to say "a friend who is a student" and "a father who used to be a doctor". Example: 학생인 친구가 있어요. (haksaengin chinguga isseoyo.) "I have a friend who is a student." Spoken [학쌩인 친구가 이써요].
있는 없는 Modifier 재미있는
The 있는/없는 lesson teaches why 있다, 없다 and every word that ends in them take -는, as in 맛있는 and 재미없는. It also covers the look-alike 괜찮은. Example: 맛있는 음식이 많아요. (masinneun eumsigi manayo.) "There is a lot of tasty food." Spoken [마신는 음시기 마나요] (also [마딘는]).
The next section helps you choose a lesson for your own sentence.
Which Lesson Fits Your Sentence?
Match the sentence you want to say to the lesson in the table.
| If you want to say... | Open | Why |
|---|---|---|
| "the book I am reading" | -는 noun modifier | -는 marks an action now or a habit |
| "a pretty flower" or "the book I read" | -(으)ㄴ adjective and past modifier | -(으)ㄴ is the adjective form and the finished-action form |
| "food to eat" or "the place I will go" | -(으)ㄹ future modifier | -(으)ㄹ marks something not yet done |
| "Which ending is right here?" | -는 vs -(으)ㄴ vs -(으)ㄹ | one rule compares all three |
| "the person I met yesterday" | relative clauses in korean | a whole clause stands before the noun |
| "a friend who is a student" | 이다 modifier 인 이었던 일 | 이다 has its own modifier forms |
| "tasty food" or "a boring movie" | 있는 없는 modifier 재미있는 | 있다 and 없다 words take -는 |
For "the house I used to live in", read -던 retrospective modifier.
The next section shows the three main endings at a glance.
How Do -는, -(으)ㄴ and -(으)ㄹ Compare at a Glance?
The three endings give different times for an action verb, and the adjective has one present form. The snapshot uses 먹다 ("eat") and 작다 ("be small").
| Word | -는 | -(으)ㄴ | -(으)ㄹ |
|---|---|---|---|
| 먹다 (action verb) | 먹는 음식 (food I eat) | 먹은 음식 (food I ate) | 먹을 음식 (food I will eat) |
| 작다 (adjective) | not used | 작은 집 (a small house) | 작을 (mostly before set nouns, as in 작을 때) |
The first rule is simple. Add 는 to an action verb stem (읽는, 가는). ㄹ-stems drop their ㄹ (사는, 만드는). 있다 and 없다 also take 는 (있는, 없는). Everything else in the set builds on this rule.
Which mistake comes first? Learners most often add 는 to a plain adjective. 예쁘는 꽃 is wrong, and 예쁜 꽃 is right, because adjectives take -(으)ㄴ. The second most common mistake is the reverse: using -(으)ㄴ on a present action. 먹은 음식 is food that was eaten, and 먹는 음식 is food that is eaten now.
The next section tells you how to practise.
How Do You Practise This Set?
Practise in three steps: read one lesson, test it, then review it with cards. Each lesson ends with four practice tasks and an answer key, so you can check your own work before moving on. For quick drills, open the grammar quizzes and the grammar flashcards, which repeat the forms in short sessions.
A useful routine for the whole set takes 15 minutes a day. Say five phrases aloud with the audio (for example 먹는 음식, 먹은 음식, 먹을 음식), write three sentences with a modifier, and check each ending against the decision rule.
What this set covers. It covers the verb and adjective modifiers, the modifier forms of 이다, 있다 and 없다, and the idea of a relative clause. It does not cover the patterns that begin with a modifier, such as -(으)ㄹ 수 있다. Those patterns are in korean dependent nouns 것 수 때 줄 적 and in the tense lessons. The adverbs that describe verbs are in Korean adverbs.
About this page. Last updated 2026-10-09. The Korean text and spoken forms on this page were generated with AI assistance. Romanization follows the Revised Romanization of Korean and is shown only as a learning aid.
Frequently Asked Questions
Which modifier do I use for a past action? Use -(으)ㄴ on an action verb for a finished action: 읽은 책 means "a book I read". Use -던 when you remember an unfinished or repeated action, as in 어릴 때 살던 집 ("the house where I lived as a child"). For a past quality of an adjective, use -았/었던, as in 작았던 집.
How do Korean relative clauses work? Korean puts the whole clause before the noun, with no word like "who" or "that". The verb in the clause takes a modifier ending. 어제 만난 사람 means "the person I met yesterday", and 제가 어제 만난 사람 adds the subject inside the clause. The lesson on relative clauses explains the full pattern.
How do I choose between -는, -(으)ㄴ and -(으)ㄹ? Check the word class first, then the time. An action verb takes -는 for the present, -(으)ㄴ for the past and -(으)ㄹ for the future: 먹는, 먹은, 먹을. An adjective takes -(으)ㄴ for the present: 작은. 있다 and 없다 always take -는. The comparison lesson shows every case side by side.
Which lesson in noun-modifying forms should I read first? Start with the present modifier -는, then -(으)ㄴ and -(으)ㄹ. These three cover most sentences you will meet. Then read the comparison lesson, which puts them together. Relative clauses, the modifier forms of 이다, and 있는/없는 follow. A learner who already knows 예쁜 and 읽을 can begin with the comparison.
What level are Korean noun modifiers? Five of the eight lessons are level A2: the three tense modifiers, the comparison lesson and 있는/없는. Relative clauses and the modifier forms of 이다 are B1, and the retrospective -던 lesson is B2. A beginner can use 예쁜 꽃 and 맛있는 음식 from the first weeks, and the full system takes longer to master.