 Nouns, which must agree with a number ending in 5, 6, 7, 8, 9, 0, and all the teens are in the genitive plural.In any other case, the nouns and numbers are in the same case.Grammatical conjugation is subject to three persons in two numbers and three simple tenses (present/future, future, and past), with periphrastic forms for the future and Conditional, as well as imperative forms and present/past participles, distinguished by adjectival and adverbial usage.