AI Japanese writing correction for the grammar that trips up non-native speakers — particles, verb forms, keigo, and word choice that sounds translated. Atlas Runa marks particle errors, verb form mistakes, and unnatural phrasing — with explanations and corrections in context.
- Write Japanese freely and receive grammar corrections
- Catches particle errors, verb forms, keigo, and word choice
- Free-form writing and conversation modes
You wrote 昨日、私は東京を行きました。
Correction 昨日、私は東京に行きました。
行く takes に (or へ) for direction — を marks the path of motion through a place, not a destination.