Answer:
1 - The nominative case is the case used for a noun or pronoun which is the subject of a verb. (The pronoun "He" is the subject of the verb "eats." "He" is in the nominative case.
2 - The objective (or accusative) case pronouns are me, you (singular), him/her/it, us, you (plural), them and whom. (Notice that form of you and it does not change.) The objective case is used when something is being done to (or given to, etc.) someone.
3 - The dictionary definition of dative case is that when a noun or a pronoun refers to the indirect object of the sentence, then that particular noun or a pronoun is said to be in dative case of English grammar. Example: Sam took his dog to the vet.
Explanation:
Hope this helps!
- Eijiro <3