In Russian, nouns are divided into three groups based on gender: masculine, feminine, and neuter.

Noun Gender Rules:

1. Masculine:

   • These nouns usually end in a consonant, like "стол" (which means "table"), or with "й," like "бульон" (which means "broth").

2. Feminine:

   • These nouns usually end in "а," like "книга" (meaning "book"), or in "я," like "мама" (meaning "mom").

3. Neuter:

   • These nouns often end in "о," like "окно" (which means "window"), or in "е," like "море" (which means "sea").

Overview of Cases:

1. Nominative: This shows the subject of the sentence.
2. Accusative: This shows the direct object. For example, "I see книгу" (which means "I see a book").
3. Genitive: This shows possession, like "книги" (meaning "of the book").
4. Dative: This shows the indirect object, like "книге" (meaning "to the book").
5. Instrumental: This shows how something is done, like "книгой" (meaning "with the book").
6. Prepositional: This is used with prepositions, like "о книге" (meaning "about the book").

Example of Sentence Structure:

For example, in the sentence "Я читаю книгу" (which means "I read a book"), we have "я" (the subject) + "читаю" (the action) + "книгу" (the object).

Personal Pronouns:

Pronouns change based on gender and case. For example, "я" means "I" and "меня" means "me."

By learning these simple rules, you'll get a good start in understanding Russian grammar!