In Russian, adjectives are words that tell us more about nouns. They need to match the nouns they describe in three important ways: gender, number, and case.

Let’s break it down:

• The word "машина" means "car," and it is a feminine noun (we say "she" for it).

• If we want to say "new car," we need to change the word "новый," which means "new," to fit with "машина."

Here’s how to change "новый" when we're talking about "машина":

1. Find the Gender:

   • "Машина" is feminine (like saying "she").

2. Identify the Case:

   • When we use the accusative case (which shows the direct object of the verb), feminine nouns follow a special rule. If the noun is alive, it takes a form from the genitive case.

3. Change "новый" to match "машина":

   • For masculine nouns, "новый" stays the same.
   • But for feminine nouns in the singular form, it changes to "новая."

So, when we put this all together in the accusative case, we say:

• "Я вижу новую машину." (This means "I see a new car.")

Summary:

• "Машина" (feminine noun) + "новая" (the correct form of "new" in the accusative case) gives us "новую машину."

This rule helps us with all adjectives in Russian. It’s really important that they agree with the gender, number, and case of the nouns they describe.