The Genitive Case in Depth: Plurals, Numbers, and Absence

Welcome to our lesson on the Genitive case. You may already be familiar with its use for possession (e.g., 'книга студента' - the student's book). Today, we will significantly expand your understanding by focusing on three crucial applications: plurals, numbers, and expressing absence. Mastering these concepts is essential for achieving B1-level fluency.

🔹 Part 1: The Genitive Plural

The Genitive Plural is a highly frequent form in Russian. It is required in several specific situations:

• After numbers 5 and above (e.g., пять столов – five tables).
• After words indicating quantity, such as:
• много (a lot of): много друзей
• мало (few): мало проблем
• несколько (several): несколько вопросов
• сколько (how many): сколько лет?
• When expressing the absence of multiple items (e.g., здесь нет билетов – there are no tickets here).

Let's review the formation rules:

➡️ Masculine Nouns:

• If the noun ends in a hard consonant, add -ов.
  студент ➝ студентов (students)
  город ➝ городов (cities)
• If it ends in -й, -ь, or a sibilant consonant (-ж, -ш, -ч, -щ), add -ей.
  музей ➝ музеев (museums)
  учитель ➝ учителей (teachers)
  врач ➝ врачей (doctors)

➡️ Feminine Nouns:

• If the noun ends in -а, remove the -а. This often results in a 'zero ending'.
  книга ➝ книг (books)
  комната ➝ комнат (rooms)
• If removing -а creates a cluster of consonants at the end, a 'fleeting vowel' (-о- or -е-) is inserted for easier pronunciation.
  девушка ➝ девушек (girls)
  сестра ➝ сестёр (sisters)
• If the noun ends in -я or -ь, replace it with -ей.
  статья ➝ статей (articles)
  дверь ➝ дверей (doors)

➡️ Neuter Nouns:

• If the noun ends in -о, remove the -о. A fleeting vowel may be added.
  окно ➝ окон (windows)
  письмо ➝ писем (letters)
• If it ends in -е, replace it with -ей.
  море ➝ морей (seas)
  здание ➝ зданий (buildings)
• For nouns ending in -мя, the ending becomes -мён.
  имя ➝ имён (names)
  время ➝ времён (times)

🔹 Part 2: Numbers and the Genitive Case

Russian grammar dictates a specific case usage with numbers, often referred to as the '1-2-5 Rule'.

1️⃣ Number 1 (один, одна, одно): The noun remains in the Nominative Singular.

• один стул, одна машина, одно окно.

2️⃣ Numbers 2, 3, 4 (два/две, три, четыре): The noun must be in the Genitive Singular. This is a critical distinction.

• два стула, три машины, четыре окна.
• Note the gender distinction: 'два' for masculine/neuter, 'две' for feminine.

5️⃣ Numbers 5 through 20 (and any number ending in 5, 6, 7, 8, 9, or 0): The noun must be in the Genitive Plural.

• пять стульев, шесть машин, двадцать окон.

✅ For compound numbers, the noun agrees with the last number in the sequence:

• 21 (двадцать один) ➝ двадцать один студент (Nominative Singular)
• 32 (тридцать два) ➝ тридцать два студента (Genitive Singular)
• 45 (сорок пять) ➝ сорок пять студентов (Genitive Plural)

🔹 Part 3: Expressing Absence

The Genitive case is fundamentally linked to negation. To state that something does not exist or someone does not possess something, the Genitive is required.

➡️ The key construction is НЕТ + Genitive.

• 'Нет' (no, there is not/are not) always triggers the Genitive case for the noun that is absent.
• У меня нет времени. (I have no time.) - Genitive Singular
• В городе нет парков. (There are no parks in the city.) - Genitive Plural

➡️ The structure for 'someone doesn't have something' is: У + [Person in Genitive] + нет + [Object in Genitive].

• У Анны нет билета. (Anna doesn't have a ticket.)
• У студентов нет вопросов. (The students do not have questions.)

➡️ This principle extends to the past and future using the negative forms of the verb 'быть' (to be).

• Past: не было + Genitive
  Вчера не было снега. (There was no snow yesterday.)
• Future: не будет + Genitive
  Завтра не будет встречи. (There will be no meeting tomorrow.)