What question does the nominative case answer?
Nom. кто? что? - subject - who, what
What question does the genitive case answer?
Gen. Кого? Чего? Of whom, of what,from whom, from what
What questions does the dative case answer?
Dat. Кому? Чему? To whom ? To what?
What questions does the accusative case answer?
Acc. Кого? Что? - object - Whom, what.
What question does the instrumental case answer?
Instr. Кем? Чем? By whom, by what
What questions do the prepositional case answer?
Prep. О ком? О чем? About whom,about what