Why Japanese is difficult
Japanese combines an isolating particle system with agglutinative verb morphology and optional subject omission — patterns that don't map cleanly onto English grammar.
The grammar concepts that trip learners up
Grammario shows all of these in context, on every sentence you analyze.
Particles (は, が, を, に)
Japanese particles mark grammatical roles that English expresses with word order. Grammario labels each particle and explains its function in context.
Verb conjugation chains
Te-form, masu-form, potential, passive, causative — Japanese verbs stack endings. Grammario segments each morpheme so the pattern is visible.
Politeness levels
Plain, polite, and honorific forms change how sentences read socially. Grammario tags the register used in your sentence.
SOV word order
The verb comes last and modifiers stack before the noun. The dependency graph shows how clauses nest inside longer sentences.
What Grammario shows you
Every analysis gives you multiple lenses on the same sentence.
Particle tagging
Every particle labeled with its grammatical role — topic, subject, object, direction, and more.
Morpheme segmentation
Verb and adjective endings broken into readable chunks with tense, polarity, and politeness marked.
Dependency parsing
See how clauses connect in SOV order, including embedded quotes and relative clauses.
AI explanations
Plain-language breakdowns of grammar concepts linked to the Learn curriculum.
Common questions about Japanese grammar
How do I analyze Japanese grammar for free?
Paste any Japanese sentence into Grammario to see particles, verb forms, morpheme segmentation, and dependency structure — free for up to 3 analyses per day.
Can Grammario explain Japanese particles?
Yes. Every particle is tagged with its role (topic, subject, object, etc.) and explained in the context of your sentence, which is one of the hardest parts of Japanese for English speakers.
Does Grammario support Japanese verb conjugation?
Grammario segments verb and adjective endings into morphemes and labels tense, polarity, politeness, and form so you can see exactly how each conjugation is built.