The nominative case in Russian is super important because it helps us know who or what is doing something in a sentence. Let’s break it down:

1. Subjects of Sentences: This is the noun that does the action.

   • For example: Кот спит. (The cat is sleeping.)

2. Predicate Nouns/Adjectives: These words describe the subject.

   • For example: Он врач. (He is a doctor.)
   • Another example: Она счастлива. (She is happy.)

3. Counts and Quantities: We use this case a lot with numbers.

   • For example: Два стола. (Two tables.)

4. Questions about who/what: This helps us ask about someone or something.

   • For example: Кто это? (Who is this?)
   • Another example: Что это? (What is this?)

By knowing these rules, you can make sentences that are clear and correct!