**Preposition** (предлог) is a word that shows the relationship between a noun or pronoun and other words in a sentence. Here are some examples of using prepositions in English:
1. I went **to** the store to buy some groceries.
2. She is sitting **on** the chair by the window.
3. The book is **under** the table.
4. He is responsible **for** the project.
5. They are going **to** the cinema tonight.
6. The cat jumped **over** the fence.
7. I am thinking **about** going on vacation next month.
8. She is looking **for** her keys.
9. The book was written **by** a famous author.
10. We are going to meet **with** our friends tomorrow.
In each of these examples, a preposition is used to connect a noun or pronoun to another word in the sentence, indicating the relationship between them.