Japanese Particles

Particles (助詞, joshi) are one of the most fundamental elements of Japanese grammar. They are short syllables that attach to the end of nouns, pronouns, and phrases to mark their grammatical relationship to the rest of the sentence. There are no particles in English — their function is handled by word order and prepositions.

Core Sentence Particles

は (wa) — Topic Marker

Marks the topic of the sentence — what the sentence is about. Note: は is read "wa" when used as a particle (not "ha").

Function: "As for X, ..." The topic sets the frame for the comment that follows.

Sentence	Romaji	Translation
私は学生です。	Watashi wa gakusei desu.	I am a student. (As for me, [I am] a student.)
東京は大きいです。	Tōkyō wa ōkii desu.	Tokyo is big.
これは何ですか？	Kore wa nan desu ka?	What is this?
お茶は好きですか？	Ocha wa suki desu ka?	Do you like tea?

は for contrast: は also signals contrast between two things:

• 私は行くが、彼は行かない。— I will go, but he won't.
• コーヒーは飲むが、お茶は飲まない。— I drink coffee, but not tea.

が (ga) — Subject Marker

Marks the grammatical subject — who or what performs the action, or who/what has a property.

Key difference from は: が marks new information or emphasis; は marks the established topic.

Sentence	Romaji	Translation
猫がいます。	Neko ga imasu.	There is a cat (not: there is a dog).
誰が来た？	Dare ga kita?	Who came?
日本語が好きです。	Nihongo ga suki desu.	I like Japanese. (Japanese is what I like.)
雨が降っています。	Ame ga futte imasu.	Rain is falling.

Special use — が with potential/desire/likeness: Certain adjectives and potential verbs take が, not を, for their object:

• 〜が好き (X が suki, like X): 日本語が好き — I like Japanese
• 〜がほしい (X ga hoshii, want X): 新しい車がほしい — I want a new car
• 〜ができる (X ga dekiru, can do X): 日本語ができる — I can speak Japanese

は vs. が summary:

• は = topic (known, established, or contrasted): 象は鼻が長い — As for elephants, their nose is long.
• が = subject (new info, emphasis, focus): 誰が来た？田中さんが来た。— Who came? Tanaka-san came.

を (o) — Object Marker

Marks the direct object of a transitive verb. Note: を is read "o" in modern standard Japanese.

Sentence	Romaji	Translation
ご飯を食べる。	Gohan o taberu.	Eat rice/a meal.
本を読む。	Hon o yomu.	Read a book.
日本語を勉強する。	Nihongo o benkyō suru.	Study Japanese.
映画を見た。	Eiga o mita.	Watched a movie.
バスを降りる。	Basu o oriru.	Get off the bus. (movement through/away from space)

に (ni) — Direction / Time / Indirect Object / Location of Existence

One of the most versatile particles with several distinct uses:

1. Direction of movement (going to):

• 東京に行く — go to Tokyo
• 家に帰る — return home

2. Specific time:

• 3時に来てください — Please come at 3 o'clock
• 月曜日に会議がある — There is a meeting on Monday

3. Indirect object (recipient):

• 友達にプレゼントをあげる — Give a present to a friend
• 先生に質問する — Ask the teacher a question

4. Location of existence (with ある/いる):

• 机の上に本がある。— There is a book on the desk.
• 公園に子供がいる。— There are children in the park.

5. Agent of passive sentences:

• 先生に褒められた。— Was praised by the teacher.

6. Purpose of movement (with motion verbs):

• 映画を見に行く — Go to see a movie (見に = to see)

に vs. で:

• に marks the static location of existence (あります/います): 東京に住んでいる (live in Tokyo)
• で marks the location where an action takes place: 東京で働いている (work in Tokyo)

で (de) — Location of Action / Means / Cause

1. Location where an action occurs:

• 学校で勉強する — Study at school
• レストランで食べる — Eat at a restaurant

2. Means or method:

• 電車で行く — Go by train
• 日本語で話す — Speak in Japanese
• 箸で食べる — Eat with chopsticks

3. Material:

• 木で作られた机 — A desk made of wood

4. Cause/reason (limited use):

• 病気で休みました — Was absent due to illness

5. Total scope/range:

• 世界で一番高い山 — The tallest mountain in the world
• クラスで一番速い — The fastest in the class

へ (e) — Direction (Softer than に)

Used like directional に but with a softer, more literary feel. Indicates direction toward.

• 日本へ行く — Go to (toward) Japan
• 未来へ — Toward the future

In practice, に and へ are often interchangeable for physical direction. へ sounds slightly more literary or poetic.

と (to) — And (Exhaustive) / With / Quotation

1. And (exhaustive list):

• 猫と犬とうさぎがいる。— There are a cat, a dog, and a rabbit. (all members listed)
• cf. や (non-exhaustive and): 猫や犬がいる — There are cats and dogs (among other things)

2. Together with:

• 友達と行く — Go with a friend
• 一人と話す — Talk with one person

3. Quotation/thought marker:

• 「ありがとう」と言った。— Said "thank you."
• 難しいと思う — Think (that it is) difficult
• 行くと言った — Said (that [I/he/she] will go)

も (mo) — Also / Even / Neither ... Nor

1. Also; too:

• 私も行く。— I will go too.
• これもいいです。— This is also good.

2. Replaces は or が for emphasis/inclusion:

• 彼も来た。— He also came. (も replaces が)
• 日本語もできる — Can also speak Japanese

3. Quantity emphasis (with numbers):

• 100人も来た。— As many as 100 people came! (emphasizes surprising quantity)
• ひとつもない — Not even one

4. Negative: "not even one / neither ... nor":

• 誰もいない — Nobody is there
• どこにも行かない — Not going anywhere
• 何も食べない — Not eating anything

の (no) — Possession / Nominalization

1. Possession / belonging:

• 私の本 — my book
• 東京のレストラン — a restaurant in Tokyo
• 先生の話 — the teacher's story

2. Description modifier:

• 日本語の本 — a book in/about Japanese
• 昨日のニュース — yesterday's news

3. Nominalization (turns verb/adjective phrase into noun):

• 食べるのが好き — Like eating (食べること as alternative, same function)
• 早く起きるのは難しい — It's hard to wake up early
• 走るのが得意 — Good at running

4. Sentence-final の (casual question or explanation):

• どこに行くの？— Where are you going? (casual)
• 体調が悪いんです (の → ん + です) — (I'm telling you) I'm not feeling well.

から (kara) — From / Because

1. Starting point (place or time):

• 東京から来た — Came from Tokyo
• 9時から始まる — Starts from 9 o'clock
• 来月から日本語を勉強する — Will study Japanese from next month

2. Because (subjective reason; speaker's own reasons/feelings):

• 疲れたから帰る — Going home because I'm tired
• 好きだから買う — Buying it because I like it

から vs. ので: から sounds more assertive/personal; ので sounds more objective and polite.

まで (made) — Until / As Far As

1. Until (time endpoint):

• 5時まで働く — Work until 5 o'clock
• 明日まで待つ — Wait until tomorrow

2. As far as (place endpoint):

• 東京まで行く — Go as far as Tokyo
• ここまで歩く — Walk as far as here

3. Even; to the extent of (emphasis):

• そんなことまでする — Going so far as to do that
• 子供まで知っている — Even children know (it)

から〜まで (from ... to ...)

• 東京から大阪まで電車で3時間 — From Tokyo to Osaka is 3 hours by train
• 月曜日から金曜日まで働く — Work from Monday through Friday

Ending Particles

か (ka) — Question Marker

Turns any statement into a yes/no question. In casual speech, often dropped and replaced with rising intonation:

• 学生ですか？— Are you a student?
• 食べましたか？— Did you eat?
• Casual: 行く？ (iku?) — Going? [no か needed]

ね (ne) — Seeking Confirmation / Shared Knowledge

Seeks agreement or signals shared understanding. Like "right?" or "isn't it?":

• 寒いですね。— It's cold, isn't it.
• 美味しいですね。— It's delicious, right?
• 田中さんも行くね？— Tanaka-san is going too, right?

よ (yo) — Assertion / New Information

Signals that you're informing or asserting something the listener may not know. Like "you know" or "I'm telling you":

• それは間違いですよ。— That is wrong (I'm telling you).
• もう8時ですよ。— It's already 8 o'clock (you should know).
• 大丈夫ですよ。— It'll be fine (I'm assuring you).

よね (yone) — Combined assertion + confirmation

• そうですよね？ — That's right, isn't it? (I believe so, do you agree?)

Combining Particles

Some particles combine to form compound particles:

Compound	=	Meaning
には	に + は	"in/at (topic)" — 東京には行ったことがない
では	で + は	"at/by (topic/contrast)" — 日本語では難しい
からは	から + は	"from (topic)"
にも	に + も	"also/even at/to"
でも	で + も	"even at; even with; but (conjunction)"
とは	と + は	"as for (what is called)" — 愛とは何か
までも	まで + も	"even; to the extent of even"