sentences:  Singular, plural and dual inflections of the same case always differ among themselves; no rule dictates how to form, for example, the plural inflection from the singular of the same case.Lithuanian nouns have five declensions which are defined by the inflection in singular nominative and genitive cases.Only a few borrowed words, like taksì – taxi, tabù – taboo, kupė̃ – compartment (in a train), coupé, are not subject to declension.