Build confidence — write real sentences that sound natural
JLPT N4 proves you can handle everyday Japanese. It introduces te-form combinations, potential forms, conditional patterns (～たら、～ば、～と), passive and causative voice, and a vocabulary of ~1500 words.
These are the errors that show up most often in N4 writing. ZISTICA MOJIIQ's AI correction engine is calibrated to catch exactly these patterns — it won't just flag the mistake, it will explain the rule and show you the corrected form so you stop repeating the same errors.
Set your JLPT target to N4 and every correction is calibrated to your exact level. The AI explains mistakes using vocabulary and grammar you already know — no overwhelming explanations, no condescension. Practice writing in Gmail, Slack, Notion, or anywhere else and get instant feedback.
What is the difference between JLPT N4 and N5?
N4 introduces conditional grammar (4 forms), passive/causative voice, and complex verb combinations. Vocabulary expands to ~1500 words. Writing practice at N4 level should focus on natural sentence flow, not just correctness.
How hard is JLPT N4?
N4 is a significant jump from N5. The conditional grammar alone (たら/ば/と/なら) trips up most learners. The pass rate is 35–45%. Regular writing practice with feedback is key.
How many hours to study for JLPT N4?
Expect 300–450 total hours from scratch, or 150–250 additional hours if you have passed N5.
Put it into practice
Write a sentence using what you just learned — then check it with the free Japanese grammar checker.