は vs. が
私が田中です。
私は田中です。
は introduces the topic; が picks one thing out of several, or answers a question word.
Japanese · こんにちは
Practice Japanese by texting in it
Japanese particles are learned by getting them wrong in real sentences. FluenText reviews the Japanese you text — に vs. で, は vs. が, the politeness level you are writing in — and shows the fix under your own message, with furigana and a definition when you tap a word you do not know.
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Alex Rivera
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週末は何をしましたか。
図書館に勉強しました。
Grammar Coach Feedback
Particle
Original:
図書館に勉強しました。
Suggested:
図書館で勉強しました。
に marks a destination or where something exists; the place where an action happens takes で.
Japanese mistakes FluenText catches
The errors that survive years of study, because nobody in a real conversation stops to correct them.
Transitive and intransitive pairs
ドアが開けました。
ドアを開けました。 / ドアが開きました。
Someone opens the door (を + 開ける) or the door opens (が + 開く). Japanese uses two different verbs.
Mixing politeness levels
今日は忙しいです。だから行かない。
今日は忙しいです。だから行きません。
です・ます and plain form in the same breath reads as a slip, even when each sentence is fine alone.
Counters
ビールを三つください。
ビールを三本ください。
The counter follows the shape of the thing — 本 for bottles, 枚 for flat objects, 人 for people.
How Japanese practice works
No lessons, no streak of flashcards. Just the conversations you would be having anyway.
01
Real conversationsText a friend — or an AI partner
Set a chat's language to Japanese and message a friend who speaks it. No one to practice with? Open a chat with an AI conversation partner that replies at your level.
02
Instant correctionEvery message gets reviewed
Your Japanese is checked as you send it. Mistakes come back highlighted right against your own sentence, tagged by category, with a clear explanation.
03
Ask follow-upsType @coach when you are stuck
Ask why a correction happened, how to say something more politely, or what a phrase means. The coach reads the thread and answers inline.
Furigana and definitions on tap
Tap a single word in a Japanese message and you get dictionary-grade detail — furigana, part of speech and the nuance of that specific use — instead of a literal sentence translation.
Japanese practice questions
Yes. Tapping a word in a message gives you its reading in furigana along with the meaning in context, so you can read messages that are above your level.
Set the chat to polite or formal and it will. On the default auto setting it does not guess at how formal you should be with someone, but it still flags a single message that mixes です・ます with plain form.
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