Overview of Ainu language

Ainu is a language isolate of northern Japan that used to be more widespread. It's mostly spoken on the island of Hokkaido. Ainu has a transparent grammatical structure with polypersonal agreement in verbs. The language lacks tense, but has an extensive system of affixes, including causative, applicative, reflexive, reciprocal, and more. Nouns in Ainu do not change much, but they do have possessive forms and can be marked for plurality with specific suffixes. The numeral system in Ainu is vigesimal, with classifiers used for nouns. The language also has a topic marker, negation markers, and auxiliaries for evidentiality, modality, aspect, and mood. The Ainu language shows traces of influence from Japanese, but it's important to remember that it is a distinct and unique language.