文法. A collective term for syntax (the way sentences are put together) and morphology (forms of words, including the way new words are put together). Often used to describe function words such as particles, to describe word endings, and to talk about general sentence structure.
Applies to any question regarding Japanese grammar, such as particles, conjugations and endings for verbs and adjectives, and general sentence structure.
Questions about specific words, or nuance differences between words, are not included in this tag.