Basic Japanese Grammar: Sentence Structure & Particles

Learning Japanese – Part 1. This article assumes you have read the introduction and know the three basic scripts: hiragana, katakana, and kanji. If not, start here:

• Hiragana
• Katakana
• Kanji
• Introduction

Do not skip those. Example sentences in this article (and later parts) are written in Japanese script, not the Latin alphabet. It is fine if reading is still slow—that is part of the practice.

Below is a vocabulary table used in the examples. Scroll down if you want to scan the list first.

Form	Romaji	Meaning	Word class
私わたし	Watashi	I / me	pronoun
貴方あなた	Anata	you	pronoun
彼かれ	Kare	he	pronoun
彼女かのじょ	Kanojo	she	pronoun
お父とうさん	Otousan	father	noun
男おとこ	Otoko	man / male	noun
学生がくせい	Gakusei	student	noun
魚さかな	Sakana	fish	noun
猫ねこ	Neko	cat	noun
犬いぬ	Inu	dog	noun
誰だれ	Dare	who	pronoun
動物どうぶつ	Doubutsu	animal	noun
動物園どうぶつえん	Doubutsuen	zoo	noun
人参にんじん	Ninjin	carrot	noun
車くるま	Kuruma	car	noun
家いえ	Ie	house / home	noun
花はな	Hana	flower	noun
本ほん	Hon	book	noun
机つくえ	Tsukue	desk / table	noun
道みち	Michi	road / way	noun
お茶ちゃ	Ocha	tea	noun
建物たてもの	Tatemono	building	noun
学校がっこう	Gakkou	school	noun
領域りょういき	Ryouiki	territory / area	noun
飲のむ	Nomu	drink	godan verb
食たべる	Taberu	eat	ichidan verb
行いく	Iku	go	godan verb
好すき	Suki	like	na-adjective
買かう	Kau	buy	godan verb
走はしる	Hashiru	run	godan verb
読よむ	Yomu	read	godan verb
話はなす	Hanasu	speak	godan verb
言いった	Itta	said	godan verb (past)
休やすむ	Yasumu	rest	godan verb
難むずかしい	Muzukashii	difficult	i-adjective
白しろい	Shiroi	white	i-adjective
インドネシア語ご	Indoneshiago	Indonesian language	noun

Japanese Sentence Patterns

The clearest difference between Japanese grammar and Indonesian or English is sentence order. In simple sentences, Indonesian and English usually follow Subject-Predicate-Object.

Japanese uses Subject-Object-Predicate. The predicate comes at the end. Each part of the sentence is usually marked by a particle that shows the role of the word it follows—subject, object, location, and so on. The three particles you will see most often are 「は」「を」and「が」. This article covers those three plus several other particles.

Context Sensitivity

Japanese is highly context-sensitive: words or phrases that are already clear to both speaker and listener are often omitted. For example, the idea “I like cats” can be written as simply as this:

Notice that the subject is missing. When the context is clear, that is allowed. The small letters above the kanji are furigana—read more in Understanding furigana.

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Basic Japanese Particles

The endings です and だ

Before particles, a quick look at 「__です」and 「__だ」, which appear constantly in daily speech. They are called copulas. A copula links a subject to a complement. English uses forms of to be (is, am, are, was, were…). In Japanese, 「です」and 「だ」sit at the end of the sentence and help form a statement.

Both mean roughly the same thing, but 「です」is usually treated as the softer form. 「だ」sounds firmer and stresses the statement more strongly. If someone doubts your stated gender, for example, you might use the stronger form:

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Particle か – Question marker

To form a question, add 「か」 after the predicate at the end of the sentence. Examples:

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Particles は and が – Topic and subject: the main guide

This is the biggest hurdle for beginners. Let’s break it down.

1. “Old information” vs “new information”

• は (wa) = old information (topic)

  • Used for something the listener already knows, or something you want to raise as the discussion topic.
  • Listener focus goes to what comes AFTER は.
  • Example: 私わたしは学生がくせいです。 (I = old info. “Student” = the important news).

• が (ga) = new information (subject)

  • Used to introduce new information, a newly noticed phenomenon, or to answer “WHO/WHAT”.
  • Listener focus goes to the word BEFORE が.
  • Example: 誰だれが来きましたか？ (Who came? “WHO” is the focus).

2. The question trick

The easiest way to tell them apart is to look at the question:

Question	Natural answer	Why?
“Where is Mr. Tanaka from?” (focus on where)	田中さんは日本人です。	Topic “Tanaka” is already known. The answer is “Japan”.
“Who is Japanese?” (focus on who)	田中さんが日本人です。	“Tanaka” is the new information sought.

3. Contrastive は

Particle は also has a special job: contrasting two things.

• 肉にくは食たべますが、野菜やさいは食たべません。
  • (I eat meat, BUT not vegetables.)
  • Here は stresses contrast, not just topic.

4. Phenomenon sentences

When you notice something happening on its own (rain, a bus arriving, a wallet falling), use が.

• ✔️ 「あ、バスが来た！」 (Ah, the bus came!) → You are reporting something you just noticed.
• ❌ 「あ、バスは来た！」 → Sounds unnatural (unless you were already talking about that bus).

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Particle を – Direct object

Particle 「__ を」(read as “お” / “o”) marks the word it follows as the object that receives the action. For example:

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Particles に vs で – Location battle

When do you use eat AT a restaurant (で) vs be AT a restaurant (に)?

に (ni) = point of existence (static)

Imagine a pin on a map. You are “stuck” there. Used with existence verbs (います / あります) or movement verbs (行く / 来る).

• 家いえにいます。(Be at home).
• 椅子いすに座すわる。(Sit on a chair → contact with that point).

で (de) = place of action

Imagine a stage where you do something.

• 家いえで寝ねます。(Sleep at home → the sleeping action happens on that stage).
• レストランで食たべる。(Eat at a restaurant → the eating action).

Test trick: Try swapping “at/in” for “inside”.

• “I eat (inside) a restaurant” → Makes sense? Use で.
• “I go (inside) school” as a path wording → Odd? Prefer に / へ.

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Particle へ – Direction / goal

Particle 「__ へ」(read as “え” / “e”) marks the destination or direction of an action. For example:

• ジャカルタへ行いく
  Go to Jakarta

• ブディは動物園どうぶつえんへ行いく
  Budi goes to the zoo

Difference between に and へ に stresses the location of being there. へ stresses direction / the path of going. へ can mark abstract destinations; に usually cannot. For example:

• スパースターへの道みちは難むずかしい
  The road to superstar is hard (✔️)

• スパースターにの道みちは難むずかしい
  The road to superstar is hard (❌)

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Particle の – Possession and links

Particle 「__ の」 is most often a possession marker, but it has other jobs too.

Possession

• 私のパソコン
  My computer

• 彼のペン
  His pen

Relational link

• 白いの本
  White book

• スラバヤの建物
  Buildings in Surabaya

Turning verbs and adjectives into noun-like units (nominalization)

• ミルクを飲のむのがいい
  Drinking milk is good

• 読よむのがいい
  Reading is good

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Particle と – Complete “and”

Particle 「__ と __ 」links two (or more) items as a complete list.

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Particle や – Incomplete “and”

や is also a linker, like と. The difference: や is an incomplete list (“and so on”). Examples:

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Particle も – “Also / even”

In short, 「__も」means “also / too”. It can replace 「は」「が」「を」, or follow other particles. It marks the word as part of the same set.

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Particle で – Means / manner

Particle 「__ で」can also mark means or method.

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Particles から and まで – Range

Particles 「__ から __ まで」express a range: “from __ to __”.

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Double particles 🧩

Sometimes two particles fuse into one small unit. Do not panic!

Combo	Meaning	Example
のに (No-ni)	even though / although	高たかいのに不味まずい (It's expensive, yet not tasty)
には (Ni-wa)	for (purpose) / at (place + topic)	私わたしには難むずかしい (For me, it's difficult)
とも (To-mo)	even / also	3回かいとも負まけた (Lost all three times)
への (E-no)	to / for (direction + link)	母ははへの手紙てがみ (A letter to mother)

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Sentence structure visualization (Mermaid)

If you learn visually, Japanese sentences build roughly like this:

graph TD;
    A[Topic (main subject)] -->|Wa| B[Place];
    B -->|De| C[Object];
    C -->|O| D[Verb (predicate)];
    
    subgraph "I eat fish at home"
    A1[Watashi] -->|Wa| B1[Uchi (Rumah)];
    B1 -->|De| C1[Sakana (Ikan)];
    C1 -->|O| D1[Tabemasu (Makan)];
    end

Basic pattern: [Topic] WA [Time/Place] NI/DE [Object] O [Predicate].

Remember: The predicate (verb) ALWAYS comes last. Time, place, and object can shuffle as long as each particle sticks to the right word.

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Particle summary

Here is a summary of every particle covered in this article. Keep the table as a quick reference.

Particle	Main job	Example
は (Wa)	topic marker	私わたしは学生がくせいです (I am a student)
が (Ga)	subject / emphasis	誰だれが来きましたか？ (Who came?)
を (Wo/O)	direct object	本ほんを読よむ (Read a book)
に (Ni)	goal / time / existence location	学校がっこうに行いく (Go to school)
へ (E)	direction / goal (broader feel)	東京とうきょうへ行いく (Go toward Tokyo)
の (No)	possession / relation	私わたしの猫ねこ (My cat)
と (To)	“and” (complete list) / together	犬いぬと猫ねこ (Dog and cat)
や (Ya)	“and” (incomplete list, etc.)	魚さかなや肉にく (Fish, meat, etc.)
も (Mo)	“also” / can replace は, が, を	私わたしも学生がくせいです (I am also a student)
で (De)	means / tool / action place	車くるまで行いく (Go by car)
から (Kara)	from (starting point)	スラバヤから (From Surabaya)
まで (Made)	until (end point)	学校がっこうまで (Until school)

Tip: は vs が — which one?

This is one of the most common beginner questions. A simple rule:

• Use は when the topic is already known or being set. Think of “selecting” the topic of talk.
• Use が when introducing new information, or answering “who/what…” (誰だれが / 何なにが).

Contrast:

• 私わたしは田中たなかです。 = As for me, I am Tanaka. (self-intro — topic = me)
• 田中たなかさんが来きました。 = It was Mr. Tanaka who came. (answering “who came?” — new info)

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Practice: Check your understanding

Fill in the right particle:

Q1: 私わたし(__)学生がくせいです。 — “I am a student.”

Answer: は

Q2: 水みず(__)飲のむ。 — “Drink water.”

Answer: を

Q3: 車くるま()学校がっこう()行いく。 — “Go to school by car.”

Answer: で, に (or へ)

Q4: これは私わたし(__)本ほんです。 — “This is my book.”

Answer: の

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Conclusion

Great work—you have covered 12 basic Japanese particles in one article. That is a strong foundation for Japanese sentence structure.

Particles are role markers: who does what, where, by what means, and to whom. Without them, Japanese sentences lose their map—unlike Indonesian, which relies more on word order alone.

Do not worry if you cannot memorize every particle at once. Focus first on five core ones: は, を, に, の, で. Those already cover most everyday sentences.

Next step: In Part 2, we cover adjectives and verbs—how to add “flavor” and “action” to the particle frames you built here.

Related reading:

• Introduction to Japanese
• Learning Japanese Part 2: Verbs & Adjectives

頑張がんばって！ (Ganbatte / Keep going!)

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