Elementary - Grade 3
Lesson 1: Topic vs. Subject Particles
What Are Particles?
Particles are short markers that attach to nouns to tell you their "job" in the sentence. They are the single most important part of Korean grammar!
Because Korean is an SOV language, particles tell us "who" is the subject, "what" is the object, "where" something is, etc.
Today, we're learning the two most important ones: 은/는 (Topic) and 이/가 (Subject).
The Attachment Rule (You know this!)
Just like 이에요/예요, which particle you use depends on whether the noun ends in a consonant or a vowel.
Topic Particle: 은 (eun) / 는 (neun)
Ends in Consonant 은 (e.g., 책은)
Ends in Vowel 는 (e.g., 사과는)
Subject Particle: 이 (i) / 가 (ga)
Ends in Consonant 이 (e.g., 책이)
Ends in Vowel 가 (e.g., 사과가)
The Real Difference: Nuance
This is the tricky part. Both can mark the "subject." The difference is about emphasis and context.
은 / 는 (eun / neun) - The "Topic" Marker
Think of this as "As for..." or "Speaking of..."
- Introduces a topic: "I는 am a student." (Topic: Me)
- States a general fact: "Apples는 are red." (Topic: Apples in general)
- Shows contrast: "I like summer, but my brother는 likes winter."
이 / 가 (i / ga) - The "Subject" Marker
Think of this as "the one who..." or "which one?"
- Identifies the subject: (Q: Who is a student?) "I가 am a student." (The student is me)
- Marks new information: "Look! A cat가 is coming!"
- Used in descriptive sentences: "The weather가 is good."
Example Breakdown
Imagine someone asks "Who ate the apple?"
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"제가 사과를 먹었어요."
(jega sagwa-reul meogeosseoyo.)
"I ate the apple." (Emphasis on *I* being the one who did it.)
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"저는 사과를 먹었어요."
(jeoneun sagwa-reul meogeosseoyo.)
"As for me, I ate the apple." (Maybe someone else ate a pear. You're contrasting.)