Commonly encountered cases include nominative, accusative, dative and genitive. The personal pronouns distinguish nominative and accusative case forms. Icelandic nouns are declined in four cases&colon; nominative, accusative, dative and genitive. There are seven cases&colon; nominative, genitive, dative, accusative, instrumental, locative and vocative. There are five important cases for Latin nouns&colon; nominative, genitive, dative, accusative, and ablative. Gaulish had seven cases&colon; the nominative, vocative, accusative, genitive, dative, instrumental and the locative case. Modern Greek has four cases&colon; nominative, genitive, accusative, and vocative. There are six cases&colon; nominative, genitive, dative, accusative, locative, and instrumental. Finally, all neuter nouns have identical forms across the nominative, accusative and vocative. There were two numbers, three genders and four cases (nominative, accusative, genitive and dative). Cimbrian makes use of the nominative, dative, and accusative cases. Esperanto grammar involves only two cases, a nominative and an accusative. Norwegian personal pronouns are declined according to case&colon; nominative / accusative. The accusative and genitive are usually identical. Properly speaking, Arabic has only three cases&colon; nominative, accusative and genitive.