jlptpass.com/n4/grammar/
A reference guide to all 75 JLPT N4 grammar points organized by category, with explanations, formation rules, and example sentences for each pattern.
GrammarJLPT and other testsJLPT N4Verb conjugationConditionalsSentence patternsExample sentencesJLPTKeigo and politenessPassive and causativeTransitive and intransitive