In Russian, it's really important to know how to put words together in sentences that have extra parts called subordinate clauses. This helps to make the meaning clear.

Here’s a simple guide to help you understand:

1. Basic Structure:

• Start with the main idea.
• Then add the first extra part.
• Finally, add the second extra part.

Example: «Я знаю, что ты думаешь, что он не придет.»
(I know that you think he won’t come.)

2. Placement of Extra Parts:

• You can begin a sentence with an extra part to make it stand out.

Example: «Что ты думаешь, я знаю, что он не придет.»
(What you think is that I know he won't come.)

3. Using Connectors:

• When you have more than one extra part, use connectors (like "if") correctly.

Example: «Если он придет, когда ты будешь дома, я буду счастлив.»
(If he comes when you are home, I will be happy.)

4. Using Commas:

• Use commas to separate parts of the sentence, especially if the extra parts are long.

Example: «Я поддерживаю твою идею, хотя, как ты знаешь, много людей против.»
(I support your idea, although, as you know, many people are against it.)

These tips will help you create longer sentences in Russian that share more complex ideas clearly.