JLPT N5 grammar
い-adjective conjugation — Meaning & Examples
い-adjectives change their ending directly. Drop い: +くない (neg), +かった (past), +くなかった (past neg). Exception: いい (good) → よく in negative/past forms.
Practise い-adjective conjugation in the free app
This point is part of the “Adjective Conjugation” lesson in A Star Japanese. Study it with examples, a quiz, flashcards and timed JLPT N5 mock exams. Free on iPhone and Android.
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Related N5 grammar points
From the same lesson: Adjective Conjugation
Frequently asked questions
What does い-adjective conjugation mean?
い-adjectives change their ending directly. Drop い: +くない (neg), +かった (past), +くなかった (past neg). Exception: いい (good) → よく in negative/past forms.
Is い-adjective conjugation on the JLPT N5 test?
い-adjective conjugation is taught in the JLPT N5 grammar course in A Star Japanese (lesson “Adjective Conjugation”), so it is a pattern learners at this level are expected to recognise. The JLPT does not publish an official grammar list, so treat this as a study guide rather than an official requirement.
How can I practise い-adjective conjugation?
Open the “Adjective Conjugation” lesson in the free A Star Japanese app for iPhone and Android. It has examples, a quiz after every lesson, flashcards with spaced repetition and timed JLPT N5 mock exams, with no ads.