Particles

Korean Subject Marker 이/가

Use 이/가 when the subject is new, emphasized, identified, or directly described.

Written and reviewed by a native Korean speaker in South Korea. Last reviewed July 2, 2026.

Introduction

Korean Subject Marker 이/가 begins by showing what the target particle or ending does inside a short sentence. The Korean Subject Marker 이/가 guide explains the pattern in plain English, adds Korean examples, and then moves into worksheet practice. Its goal is to help learners notice this grammar while reading and writing rather than memorize an isolated label.

In Korean Subject Marker 이/가, the main focus is 이/가 (i/ga). For this particles resource, start with the Korean form, check romanization only when pronunciation support is needed, and then apply the topic in the printable practice.

Learning Objectives

Recognize the main grammar focus: 이/가.
Read 제가 in Hangul and use jega only as temporary pronunciation support.
Use the Korean Subject Marker 이/가 activities to move from recognizing particles forms to producing them independently.
Review 제가, 친구가, 책이 with a teacher, tutor, parent, or study partner.

Grammar Rule and Visual Formula

Marks the grammatical subject and often highlights who or what performs, exists, or has a quality.

Noun ending in a consonant + 이

Noun ending in a vowel + 가

Why Koreans Use This Grammar

Korean speakers use 이/가 when identifying the subject, presenting new information, or placing focus on who or what fits the description.

Common Situations

Answering who or what
Introducing something new
Using 있어요, 없어요, 좋아요, or many descriptive predicates

이/가 compared with 은/는

이/가 focuses the subject inside the statement. 은/는 sets a broader topic or contrast. Both may be possible, but the information focus changes.

Pronunciation Note

이 is pronounced as a separate vowel syllable after a final consonant. 가 attaches directly after a vowel.

Native Usage Note

Question-and-answer pairs often preserve the focus: 누가 왔어요? 민수가 왔어요. The subject marker naturally identifies the person requested by the question.

Mini Conversation

누가 선생님이에요?

Who is the teacher?

지수 씨가 선생님이에요.

Jisu is the teacher.

Mini Story

교실에 학생이 있어요. 학생이 책을 읽어요. 선생님이 교실에 들어와요.

There is a student in the classroom. The student reads a book. The teacher enters the classroom.

Reading Practice

Read the mini conversation and story twice. On the second reading, identify every use of the target grammar and explain its role without relying on the English translation.

Speaking Practice

Replace one noun or verb in the model dialogue with information from your own life. Say the new exchange aloud, keeping the target grammar and polite ending.

Writing Practice

Write three original sentences with the visual formula above. Use one statement, one question, and one negative or contrasting sentence when the grammar allows it.

How to Use This Resource

Begin with the Korean Subject Marker 이/가 vocabulary table and identify the Korean form for I as the subject.
While studying Korean Subject Marker 이/가, say 제가 and 친구가 aloud before writing so pronunciation and Hangul stay connected.
Complete the particles practice slowly, then repeat the item that was hardest to recall.
After finishing Korean Subject Marker 이/가, open a related grammar lesson and reuse at least one item from 이/가.

Key Vocabulary

Korean	Romanization	Meaning / Use
제가	jega	I as the subject
친구가	chinguga	friend as the subject
책이	chaegi	book as the subject
날씨가	nalssiga	weather as the subject

Examples and Study Notes

제가 is a useful pattern to notice in beginner Korean sentences.
Try replacing the noun or verb in the example while keeping the grammar focus the same.
Read the sentence aloud once for meaning and once more for the grammar ending or particle.

Worksheet Preview

Preview every available page of Korean Subject Marker 이/가 before printing. Its activities reinforce the particles explanation through the reading, writing, recognition, or sentence work shown below.

Download PDF

Download the Korean Subject Marker 이/가 PDF after reviewing the examples and key vocabulary. Complete the first attempt carefully, then revisit the hardest particles item the next day instead of repeating only the easy rows.

Download Printable PDF Print This Worksheet Answer Key

Guided Practice

Complete the first Korean Subject Marker 이/가 round with the vocabulary table and examples visible. The goal is accurate particles thinking, not speed.

Read 제가 (jega) with the meaning “I as the subject,” then cover the English and identify it again.
Compare 제가 with 친구가. Say what changes in sound, meaning, sentence role, or context.
Complete the first particles example with the lesson open, checking each step before moving on.

Independent Practice

Close or cover the Korean Subject Marker 이/가 key vocabulary before starting this round. Check your work only after all three tasks are complete.

In Korean Subject Marker 이/가, write 친구가 from memory and add its English meaning without checking the vocabulary table.
Create one original Korean Subject Marker 이/가 example using 책이; use a complete phrase or sentence when the topic allows it.
Finish the Korean Subject Marker 이/가 printable task independently, then mark any item that required romanization or an English hint.

Review Checklist

I can recognize 제가 without looking at the English.
I can explain or use 친구가 in the context taught on this page.
I can complete the particles task with less support than on my first attempt.
I know which item from Korean Subject Marker 이/가 needs another review tomorrow.

Mini Quiz

Which Korean form in this lesson means “I as the subject”?
How is 친구가 romanized, and what does it mean here?
Write the Korean form for “book as the subject.”

Mini Quiz Answer Key

Check the Korean Subject Marker 이/가 answers only after completing the mini quiz. Accept equivalent English wording when the Korean form and this lesson's meaning are accurate.

제가 (jega)
chinguga; friend as the subject
책이 (chaegi)

Teacher Notes

Learning objective: By the end of the lesson, learners should recognize the main focus 이/가 and complete one sentence comparison and pattern selection task with reduced support.
Recommended age: Teens and adults; adaptable for supported younger learners
Level: Beginner
Estimated time: 20-30 minutes
Materials needed: Printed worksheet or lesson page, pencil, eraser, and a separate sheet for extension work
Extension activity: Write two sentences that use 제가, then change one noun or verb while keeping the grammar pattern accurate.
Assessment idea: For the Korean Subject Marker 이/가 assessment, ask learners to identify 제가, explain 친구가, and produce or apply 책이 without copying. Record whether each response is independent, prompted, or not yet secure.

Tips for Self-learners

Read the particles explanation before printing Korean Subject Marker 이/가.
Complete one page carefully and say 제가 aloud as you work.
Review the hardest row containing 친구가 the next day.
For Korean Subject Marker 이/가, cover the English meanings and test whether you can recognize the Korean forms first.

Tips for Parents and Teachers

Introduce Korean Subject Marker 이/가 in a short first round and prioritize accurate recognition of 제가 over finishing every item.
For Korean Subject Marker 이/가, model 제가 and 친구가 aloud, then use group repetition before independent writing.
During tutoring, ask the learner to point to the Korean form for “I as the subject” before revealing the English answer.
Return to this particles worksheet after one or two days and compare reading speed with the first attempt.

Common Mistakes

Do not read only “jega.” Look back at 제가 so romanization remains a temporary bridge.
In Korean Subject Marker 이/가, do not rush the written form of 제가; slow practice makes Korean letter shape and syllable spacing easier to notice.
Do not assume “I as the subject” always maps word for word to Korean. Check the example and context provided in Korean Subject Marker 이/가.

FAQ

Is Korean Subject Marker 이/가 good for beginners?

Yes. Korean Subject Marker 이/가 introduces 이/가 with Hangul, romanization support, English meaning, and guided particles practice.

Can teachers or parents use this resource?

Yes. Teachers and parents can use the Korean Subject Marker 이/가 printable for a particles warmup, tutoring task, homework review, or independent practice.

Should learners download the PDF first?

For Korean Subject Marker 이/가, read the explanation and the entries for 제가 and 친구가 first, then use the PDF for active review.