In Russian, it's really important to understand two special forms of words called the nominative case and the accusative case. This is especially true for masculine nouns. Let’s break it down!

1. Noun Gender and Cases:

• Masculine nouns usually end with a consonant.
• For example, the word "стол" means "table" and is in the nominative case.
• When we switch to the accusative case, some words change, especially for living things.
• For instance, "студент" means "student."
• In the accusative case, we say, "Я вижу студента," which means "I see the student."
• But for non-living things like "стол," it stays the same: "Я вижу стол," meaning "I see the table."

2. Present Tense Verb Changes:

• Let’s look at the verb "делать," which means "to do."
• Here’s how we change it in the present tense:
  • "Я делаю" (I do)
  • "Ты делаешь" (You do)
  • "Он делает" (He does)

3. The Verb "to be" (быть):

• The verb "быть" means "to be."
• In the present tense, we don't always use it.
• For example, in the sentence "Это студент," which means "This is a student," we leave out "есть," which means "is."

4. Asking Questions:

• To ask questions, we use special words like:
  • "что" (what)
  • "кто" (who)
  • "где" (where)
  • "когда" (when)
• An example is "Где стол?" which means "Where is the table?"

5. Adjective Agreement:

• Adjectives, or describing words, must match the noun they describe in gender, number, and case.
• For example, "большой стол" means "big table" in the nominative case.
• In the accusative case for non-living things, it stays the same: "большой стол."

Practice using these rules in your sentences to improve your Russian grammar!