To create simple conditional sentences in Russian, you need to know some basic grammar rules. These rules will help you make correct and meaningful sentences.

1. Basic Structure of Conditional Sentences

In Russian, conditional sentences usually follow this pattern: “Если + условие, то + следствие”
(If + condition, then + consequence).

Example:

• Если будет дождь, то мы останемся дома.
  (If it rains, then we will stay at home.)

2. Noun Gender

Russian nouns have three genders: masculine, feminine, and neuter. Knowing these genders is important because they change how adjectives and verbs are used.

Examples of Genders:

• Masculine: стол (table)
• Feminine: книга (book)
• Neuter: окно (window)

3. Cases

Nouns and adjectives in Russian change based on cases. Here are some important cases for conditional sentences:

• Nominative: This is the subject of the sentence (e.g., мальчик - boy).
• Accusative: This shows the direct object (e.g., я вижу мальчика - I see the boy).
• Genitive: This shows possession (e.g., у меня нет карандаша - I don’t have a pencil).
• Dative: This shows the indirect object (e.g., я даю книгу другу - I give the book to a friend).
• Instrumental: This means "with" (e.g., я пишу ручкой - I am writing with a pen).
• Prepositional: This is used after prepositions (e.g., о книге - about the book).

4. Verb Aspect

Russian verbs can show two types of actions: perfective and imperfective.

• Imperfective: This shows an ongoing or repeated action (e.g., читать - to read).
• Perfective: This shows a completed action (e.g., прочитать - to finish reading).

Example:

• Если я буду читать, я пойму. (If I read, I will understand.)

5. Personal Pronouns and Declensions

Personal pronouns change depending on their role in the sentence.

Examples:

• Я (I), меня (me), мне (to me), мной (by me)
• Ты (you), тебя (you), тебе (to you), тобой (by you)

6. Conjugation of Regular Verbs in the Present Tense

Regular verbs change depending on the subject.

Examples:

• Я читаю (I read)
• Ты читаешь (You read)
• Он/она читает (He/She reads)

7. Introduction to Adjectives

Adjectives must match the nouns they describe in gender, number, and case.

Example:

• Красивый мальчик (handsome boy - masculine)
• Красивая книга (handsome book - feminine)

8. Questions Formation

You can ask questions in different ways:

• Wh-questions: Какие книги ты читаешь? (What books do you read?)
• Yes/No questions: Ты читаешь? (Are you reading?)

9. Negation in Sentences

To make a verb negative, just put "не" before it.

Example:

• Я не читаю. (I am not reading.)

10. Practicing Conditional Sentences

Now that you know the basics, try making your own conditional sentences.

Examples:

• Если будет тепло, мы пойдем на прогулку. (If it is warm, we will go for a walk.)
• Если у тебя есть вопросы, задавай их. (If you have questions, ask them.)

Using these grammar points, you can create simple conditional sentences in Russian. Keep practicing to improve your skills!