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Grammar Book

GrammarBook N5: The Particle が (identifier/existence marker)

  • 30 Dec, 2025
  • Com 0
N5-G-008

が (Subject/Existence Marker)

Core / Particle

👀 Layer A: Visual Guide (直感理解)

📝 Quick Summary (まとめ)

「が」は、動作(どうさ)をする人や、そこに存在(そんざい)するものをピンポイントで指(さ)す言葉です。「誰が?」「何が?」をはっきりさせます。
“GA” identifies the Subject specifically. It marks WHO is doing the action or WHAT exists.

「が」 (GA) = Subject Marker / Identifier Pin.
Structure = [Subject] が [Verb/Adjective].

🔍 Layer B: Deepening (深掘り)

💡 Raya’s Hack (攻略法)

「誰(だれ)が」「何(なに)が」と聞(き)かれたら、必(かなら)ず「が」で答(こた)えよう!新(あたら)しい情報(じょうほう)には「が」を使(つか)うのがルールだよ。

If asked “Who?” or “What?”, you MUST answer with “GA”! Use “GA” when introducing new information.

🚧 Joy’s Mistake (よくある間違い)

Scene: Seeing a cat for the first time.

Joy: 「あ! 猫(ねこ) は います!」
(Ah! Neko wa imasu!)

❌ Wrong!

Why?

「いる・ある(存在)」の前は、普通(ふつう)「が」を使います。「猫がいます」が自然です。

For existence (imasu/arimasu), we usually use “GA”. “Neko ga imasu” is the natural way to say “There is a cat”.

🔥 Layer C: Practice Loop

Now it’s time to test your learning through the next 10 practice drills!

Level 1: Basic

Q1. Neko ___ imasu. (There is a cat.)
答え: ga (が)

(Neko ga imasu.)

Q2. Pen ___ arimasu. (There is a pen.)
答え: ga (が)

(Pen ga arimasu.)

Q3. Dare ___ kimasu ka. (Who is coming?)
答え: ga (が)

(Dare ga kimasu ka?)

Q4. Ame ___ furimasu. (It rains / Rain falls.)
答え: ga (が)

(Ame ga furimasu.)

Q5. Ken-san ___ imasu. (Ken is there.)
答え: ga (が)

(Ken-san ga imasu.)

Level 2: Advanced

Q6. 誰(だれ) __ 食べますか。(Who will eat?)
答え: が (ga)

(Dare ga tabemasu ka?)

Q7. (New Info) あ、バス __ 来(き)ました。(Ah, the bus came!)
答え: が (ga)

(Basu ga kimashita. *Noticing something new*)

Q8. 私(わたし)の 部屋(へや)に テレビ __ あります。(There is a TV in my room.)
答え: が (ga)

(…terebi ga arimasu.)

Q9. Translate: “Who is Ken?”
答え: 誰(だれ) が ケンさん ですか。

(Dare ga Ken-san desu ka?)

Q10. Translate: “I will go.” (Emphasizing *I* am the one who will go)
答え: 私(わたし) が 行(い)きます。

(Watashi ga ikimasu.)

Related posts:

GrammarBook N5 : AはBです (A is B) GrammarBook N5:~ではありません (A is not B – [Negative]) GrammarBook N5: ~ですか (The Question particle) GrammarBook N5: The Particle は (topic marker)
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GrammarBook N5: The Particle は (topic marker)
GrammarBook N5: The Particle を (object marker)

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