Particles
Topic Marker and Contrast Particle
The particle は (pronounced "わ") is the fundamental topic marker in Japanese, used to establish what a sentence is about. It acts like a spotlight, setting the theme so you can provide new information or descriptions about it in the rest of the sentence. Besides introducing general topics, は is also frequently used to emphasize a contrast between two different things or ideas.
01Main Functions
Setting the Sentence Topic
は attaches to a noun to tell the listener that it is the main theme, setting the stage for the rest of the sentence.
私は学生です。
I am a student.
Emphasizing Contrast
When you want to highlight the difference between two things, you can mark both items with は to make the comparison clear.
肉は食べますが、魚は食べません。
(I) eat meat, but (I) do not eat fish.
Setting Time or Context
You can use は after a time word or a location to make it the main theme of the sentence, framing the event that happens within that specific context.
今日は暑いです。
Today is hot.
02Sentence Pattern
noun + は + noun + です
田中さんは先生です。
Mr. Tanaka is a teacher.
A basic identity sentence. は marks Mr. Tanaka as the overarching topic, and です confirms his identity as a teacher.
noun + は + i-adjective + です
このお茶は熱いです。
This tea is hot.
は sets "this tea" as the topic, followed directly by an i-adjective and です to describe its current state.
noun + は + na-adjective + です
その町は静かです。
That town is quiet.
は sets "that town" as the topic, followed by a na-adjective and です to describe it.
noun + は + noun + を + verb + ます
私は毎日コーヒーを飲みます。
I drink coffee every day.
は marks the person performing the action as the overarching topic of the sentence before presenting the verb.
noun + は + noun + でした
昨日は休みでした。
Yesterday was a day off.
By marking a time word like "yesterday" with は, you establish that time frame as the main theme before describing what happened.
noun + は + na-adjective + ですが、noun + は + na-adjective + ではありません
犬は好きですが、猫は好きではありません。
(I) like dogs, but (I) do not like cats.
Using は for both "dogs" and "cats" clearly highlights the contrast between the speaker's feelings for each.
noun + は + noun + ではありません
これはお茶ではありません。
This is not tea.
は is almost always used to mark the topic in negative identity statements, making it clear exactly what is being denied.
03Example Sentences
私は学生です。
I am a student.
The particle は marks the speaker as the overarching topic of the identity sentence.
田中さんは先生です。
Mr. Tanaka is a teacher.
The particle は sets Mr. Tanaka as the topic, and です confirms his occupation.
これはお茶ではありません。
This is not tea.
In a negative identity statement, は clearly marks what is being denied.
この本は面白いです。
This book is interesting.
The particle は sets "this book" as the main theme before describing it with an i-adjective.
その町は静かでした。
That town was quiet.
The particle は establishes the town as the topic before describing its past state with a na-adjective.
私は毎日コーヒーを飲みます。
I drink coffee every day.
The particle は marks the speaker as the topic before stating their regular action.
日本語は難しいですか。
Is Japanese difficult?
The particle は sets Japanese as the topic of the question.
今日は暑いです。
Today is hot.
Attaching は to a time word makes that specific time frame the main context for the sentence.
昨日は映画を見ました。
Yesterday (I) watched a movie.
The particle は establishes "yesterday" as the setting for the action that took place.
肉は食べますが、魚は食べません。
(I) eat meat, but (I) do not eat fish.
The particle は replaces the object particle を to strongly contrast the two food items.
犬は好きですが、猫は好きではありません。
(I) like dogs, but (I) do not like cats.
Using は for both animals highlights the contrast between the speaker's feelings for each.
兄はアメリカにいます。
(My) older brother is in America.
The particle は marks the family member as the topic before stating their location.
仕事は忙しいですか。
Is (your) work demanding?
The particle は sets work as the topic of the question, asking if it keeps the listener busy.
04Comparisons
は vs. が
は marks the overarching topic, which is usually known or shared information, setting the stage for the rest of the sentence. が marks the grammatical subject, often introducing brand-new information, pointing out a specific subject, or usually attaching to question words in ordinary subject-answer questions.
私は学生です。
I am a student.
だれが学生ですか。
Who is a student?
は vs. を
Normally, direct objects of an action are marked with を. However, if you want to highlight a contrast or establish the object as the main topic of the sentence, は replaces を entirely. You cannot stack them together as をは.
毎日コーヒーを飲みます。
(I) drink coffee every day.
お茶は飲みますが、コーヒーは飲みません。
(I) drink tea, but (I) do not drink coffee.
は vs. も
While は isolates a topic to focus on it or contrast it with something else, も adds to a topic, meaning "also" or "too". Like は, も completely replaces the particles が and を.
田中さんは先生です。
Mr. Tanaka is a teacher.
山田さんも先生です。
Mr. Yamada is also a teacher.
05Nuance and Usage
The particle は acts like a spotlight on a stage. When you say 私は (As for me...), you are moving the spotlight onto yourself, and the rest of the sentence plays out under that light. Because the spotlight stays where you point it, you do not need to keep saying 私は in every sentence. You only use it again when you need to move the spotlight to a new topic.
The contrastive function of は is incredibly common in spoken Japanese. Even if you do not explicitly mention the other half of the comparison, marking a word with は instead of が or を often implies a hidden contrast. For example, if someone asks if you eat meat and you reply 肉は食べます, the use of は strongly implies "I eat meat (but I might not eat other things)".
When used with time words like 今日 (today) or 昨日 (yesterday), は sets the temporal context for the entire sentence. It tells the listener, "Regarding today, this is what is happening." This foundational framing is why time topics often appear at the very beginning of Japanese sentences.
06Core Explanation
The particle は (pronounced "わ") is the fundamental topic marker in Japanese, used to establish what a sentence is about.
The particle は is the foundational topic marker in Japanese. Even though it is written with the hiragana character "ha" (は), it is always pronounced "わ" when functioning as a particle. Its primary job is to establish what the sentence is about, telling the listener that the upcoming information relates to this overarching theme.
Because は sets a persistent theme, you do not need to repeat it in every sentence. Once you establish that you are talking about yourself with 私は, or talking about a specific item, you can drop the topic in following sentences as long as the context remains clear. In fact, repeating 私は in every single sentence of a conversation sounds unnatural.
Beginners often confuse the topic particle は with the subject particle が. While は sets the overarching theme and is usually used with known or shared information, が is used to mark the grammatical subject or introduce completely new information. In ordinary subject-answer questions, question words like だれ (who) or なに (what) usually take が, because a question word represents unknown information and is rarely an established topic.
Beyond marking a simple topic, は is frequently used to emphasize contrast. If you want to say that you eat meat but do not eat fish, you use は for both food items. When used this way, は replaces the object particle を or the subject particle が, placing a spotlight on the two opposing elements to make the comparison clear.
The topic particle is not limited to people or physical objects; it is often attached to time words or locations to set the context for an entire event. For example, marking "today" or "yesterday" with は tells the listener that everything that follows is framed within that specific time period. This makes it an incredibly versatile tool for structuring natural Japanese sentences.
07Common Mistakes
Wrong
だれは好きですか。
Correct
だれが好きですか。
Why: In ordinary subject-answer questions about who likes something, the question word だれ takes が instead of the topic marker は.
Wrong
魚をは食べません。
Correct
魚は食べません。
Why: When using は to show contrast or to make an object the topic, it completely replaces the direct object particle を. You do not stack them together.
Wrong
雨を降っています。
Correct
雨が降っています。
Why: The verb 降る does not take a direct object marked by を. For an event such as rain falling, 雨 is the grammatical subject and is marked with が.
Wrong
私は朝起きました。私はパンを食べました。
Correct
私は朝起きました。パンを食べました。
Why: Once the topic is established in the first sentence, it sounds unnatural to keep repeating 私は. In natural Japanese, established topics are omitted as long as the context remains clear.
Wrong
私がは学生です。
Correct
私は学生です。
Why: The topic particle は completely replaces the subject particle が. You cannot stack them together as がは.
Wrong
私は行く時、雨が降っていました。
Correct
私が行く時、雨が降っていました。
Why: The subject inside a subordinate modifying clause (like before 時) is generally marked with が rather than the overarching topic marker は.
08Questions
Why is the particle は pronounced "わ" when the hiragana character is "ha"?
This is due to historical sound changes in the Japanese language. Hundreds of years ago, the pronunciation of the "ha" row of kana changed when placed in the middle or end of words. While the spelling system was eventually updated to match modern pronunciation for most words, core grammatical particles like は (わ) and へ (e) kept their traditional spelling.
What is the difference between は and が?
は marks the topic, which is usually known or established information, setting the overarching theme for the sentence. が marks the grammatical subject, and is used to introduce brand-new information, point out a specific subject, or attach to question words.
Can I use は more than once in a single sentence?
Yes! The most common reason to use は multiple times in a sentence is to show contrast. For example, in 肉は食べますが、魚は食べません (I eat meat, but I do not eat fish), は is used twice to cleanly contrast the two items.
Do I have to say 私は in every sentence?
No, you should not. Once you establish yourself (or anyone else) as the topic, you drop the topic in following sentences. Repeating 私は continuously sounds very unnatural and robotic in Japanese.
09Mini Practice
- 01
田中さん（ ）先生です。
- 02
（ ）学生ですか。
- 03
Today is hot.
Tap the pieces in the correct order.
- 04
私は日本人です。私は学生です。私は東京に住んでいます。
Tap the pieces in the correct order.
- 05
犬は好きですが、猫（ ）好きではありません。
- 06
I eat meat, but I do not eat fish.
Tap the pieces in the correct order.
- 07
(Noticing an event suddenly) あっ、雨は降っています！
Tap the pieces in the correct order.
- 08
これ（ ）お茶ではありません。
Summary
Learner Summary
- The particle は (pronounced "わ") is the fundamental topic marker in Japanese, roughly translating to "as for...".
- It sets the overarching theme of the sentence, allowing the rest of the sentence to describe or provide new information about that topic.
- Once a topic is clearly established, it is usually omitted in following sentences to sound more natural.
- は completely replaces the object particle を or subject particle が when used to emphasize a contrast between two things.
- In ordinary subject-answer questions, question words like だれ (who) or なに (what) usually take が rather than the topic marker は.