In Russian, the words "в" and "на" can be a bit tricky. They’re used in different situations, so it’s important to know how to use them right to make your sentences clear.

1. How to Use "в":

• For Places: Use "в" for closed spaces.
  • Example: Я в магазине. (I am in the store.)
• For Time: Use "в" when talking about specific times.
  • Example: В пятницу мы поедем. (On Friday, we will go.)

2. How to Use "на":

• For Surfaces: Use "на" for surfaces or open spaces.
  • Example: Я на столе. (I am on the table.)
• For Events: Use "на" when you talk about events or activities.
  • Example: Я на концерте. (I am at the concert.)

3. Common Phrases:

• "в доме" (in the house) vs. "на улице" (on the street)
• "в школе" (at school) vs. "на работе" (at work)

When you understand the differences between "в" and "на," you'll be able to speak more clearly and sound more fluent!