Topic Particle は

01

The Basic Function: Marking the Topic

The particle は (wawaはハ) marks the topic of a sentence. The topic is what the sentence is about, similar to saying "As for..." or "Speaking of..." in English. It establishes the context for the information that follows. The information after は (wawaはハ) is the new or important part of the sentence.

• 私は学生です。

  watashi wa gakusei desu.watasi wa gakusei desu.わたし は がくせい です.ワタシ ハ ガクセイ デス.

  I am a student.

→ The topic is "I" (私 (watashiwatasiわたしワタシ)). The new information is "am a student" (学生です (gakusei desugakusei desuがくせい ですガクセイ デス)).

• 今日はいい天気ですね。

  kyō wa ii tenki desu ne.kyô wa ii tenki desu ne.きょう は いい てんき です ね.キョウ ハ イイ テンキ デス ネ.

  Today is nice weather, isn't it?

→ The topic is "today" (今日 (kyōkyôきょうキョウ)). The comment is about the weather.

The topic is often the grammatical subject, but not always. In the following classic example, the elephant is the topic, but "nose" is the subject of the adjective "is long".

• 象は鼻が長いです。

  zō wa hana ga nagai desu.zô wa hana ga nagai desu.ぞう は はな が ながい です.ゾウ ハ ハナ ガ ナガイ デス.

  Elephants have long noses.

→ Literally: As for elephants, (their) noses are long.

02

Using は for Contrast

A very common use of は (wawaはハ) is to create a contrast between two or more things. When used this way, it highlights the difference between the item marked with は (wawaはハ) and something else, which may be stated explicitly or simply implied.

• ビールは飲みますが、ワインは飲みません。

  bīru wa nomimasu ga, wain wa nomimasen.bîru wa nomimasu ga, wain wa nomimasen.びいる は のみます が, わいん は のみません.ビール ハ ノミマス ガ, ワイン ハ ノミマセン.

  I drink beer, but I don't drink wine.

→ は (wawaはハ) is used for both "beer" and "wine" to draw a clear contrast between them.

• ひらがなは書けます。でも、漢字はまだ難しいです。

  hiragana wa kakemasu. demo, kanji wa mada muzukashii desu.hiragana wa kakemasu. demo, kanji wa mada muzukasii desu.ひらがな は かけます. でも, かんじ は まだ むずかしい です.ヒラガナ ハ カケマス. デモ, カンジ ハ マダ ムズカシイ デス.

  I can write hiragana. But kanji is still difficult.

→ The speaker's ability with hiragana is contrasted with their ability with kanji.

The contrast can also be subtle. Using は (wawaはハ) with a negative verb often implies that while the statement is true for the topic, it might not be for other things.

• そこへは行きませんでした。

  soko e wa ikimasen deshita.soko e wa ikimasen desita.そこ へ は いきません でした.ソコ ヘ ハ イキマセン デシタ.

  I didn't go there.

→ This implies that the speaker may have gone somewhere else.

• 全部は食べませんでした。

  zenbu wa tabemasen deshita.zenbu wa tabemasen desita.ぜんぶ は たべません でした.ゼンブ ハ タベマセン デシタ.

  I didn't eat everything.

→ This implies that the speaker ate some of it.

03

Topic Marker は vs. Subject Marker が

The distinction between は (wawaはハ) and が (gagaがガ) is a fundamental concept. While both can appear after a noun, they serve different purposes.

は (wawaはハ) marks the topic: It points to something that is already known or has been established in the conversation. It sets the stage for a comment or description about that topic.

が (gagaがガ) marks the subject: It identifies new or specific information. It often answers an implicit or explicit question of "who?" or "what?" and emphasizes the subject itself as the most important piece of information.

Consider this storytelling example. The old man is introduced for the first time with が (gagaがガ). Once he is established as the topic, は (wawaはハ) is used for subsequent sentences about him.

• 昔々、おじいさんがいました。

  mukashi mukashi, ojiisan ga imashita.mukasi mukasi, ojiisan ga imasita.むかし むかし, おじいさん が いました.ムカシ ムカシ, オジイサン ガ イマシタ.

  A long, long time ago, there was an old man.

→ The existence of "an old man" is new information, so が (gagaがガ) is used.

• おじいさんは毎日山へ行きました。

  ojiisan wa mainichi yama e ikimashita.ojiisan wa mainiti yama e ikimasita.おじいさん は まいにち やま へ いきました.オジイサン ハ マイニチ ヤマ ヘ イキマシタ.

  The old man went to the mountains every day.

→ "The old man" is now the established topic, so は (wawaはハ) is used to give more information about him.

This pattern is also clear in question-and-answer pairs.

• 誰が来ましたか？

  dare ga kimashita ka?dare ga kimasita ka?だれ が きました か?ダレ ガ キマシタ カ?

  Who came?

→ The question word 誰 (daredareだれダレ) (who) seeks new, identifying information, so it takes が (gagaがガ).

• 田中さんが来ました。

  Tanaka-san ga kimashita.Tanaka-san ga kimasita.たなか-さん が きました.タナカ-サン ガ キマシタ.

  Tanaka-san came.

→ The answer identifies the person, providing the new information requested.

• 田中さんはもう帰りましたか？

  Tanaka-san wa mō kaerimashita ka?Tanaka-san wa mô kaerimasita ka?たなか-さん は もう かえりました か?タナカ-サン ハ モウ カエリマシタ カ?

  Has Tanaka-san already gone home?

→ Tanaka-san is now the known topic, and the speaker is asking for more information *about* him.

04

Using は with Other Particles

While は (wawaはハ) often replaces the subject marker が (gagaがガ) and the object marker を (ooをヲ), it can also be added *after* other particles like に (niniにニ), で (dedeでデ), or へ (eeへヘ). This makes that element the topic or adds a sense of contrast.

Replacing the object marker を (o)

• 寿司は食べます。

  sushi wa tabemasu.susi wa tabemasu.すし は たべます.スシ ハ タベマス.

  As for sushi, I eat it. (Contrasting with other foods I might not eat).

Following other particles

• 日本では、夏は暑いです。

  nihon de wa, natsu wa atsui desu.nihon de wa, natsu wa atsui desu.にほん で わ, なつ は あつい です.ニホン デ ワ, ナツ ハ アツイ デス.

  In Japan, summer is hot.

→ The particle combination では (de wade waで わデ ワ) topicalizes the location.

• 京都へは行ったことがありません。

  Kyōto e wa itta koto ga arimasen.Kyôto e wa itta koto ga arimasen.きょうと へ は いった こと が ありません.キョウト ヘ ハ イッタ コト ガ アリマセン.

  I have never been to Kyoto.

→ The combination へは (e wae waえ わエ ワ) adds contrast, implying I may have been to other places.