Nominative Cases of a Noun
17. In how many different cases is a noun put into the nominative case?
A noun is put into the nominative case in six different cases:
• First: if it is an actor
• Second: if it is a subject of the predicate
• Third and fourth: If it is a inchoative or predicate
• Fifth: If it is an inchoative of the verb kāna or one of its sisters
• Sixth: If it is a predicate of inna or one of its sisters