Modal verbs in Russian are special words that help us talk about ability, necessity, and desire. These words include "могу" (can), "должен" (must), and "хочу" (want).

They are really useful because they help us make conditional sentences.

Conditional sentences are those that discuss what could happen in different situations.

Let’s look at how to form these sentences:

1. Real Conditional Sentences:

   • How to Form: Start with "Если" (If) followed by a present tense verb. Then, add a future tense verb.
   • Example: Если я могу, я помогу. (If I can, I will help.)

2. Unreal Conditional Sentences (Present):

   • How to Form: Start with "Если бы" (If I were) and use a past tense verb. Then, add "бы" and the verb.
   • Example: Если бы я мог, я бы помог. (If I could, I would help.)

3. Unreal Conditional Sentences (Past):

   • How to Form: Start with "Если бы" (If I had) and a past tense verb. Then, use the correct past form of the verb.
   • Example: Если бы я мог, я бы помог в прошлом. (If I could have, I would have helped in the past.)

Learning how to use these types of sentences is really important if you want to improve your Russian grammar. It especially helps with understanding conditional sentences.