Breakdown of Квартира состоит из двух комнат.
квартира
apartment
комната
room
два
two
состоять
to consist (of)
Questions & Answers about Квартира состоит из двух комнат.
Why does this sentence use из instead of taking the Genitive case directly?
While your current lesson focuses on verbs like бояться or ждать that take the Genitive case directly, the verb состоять (to consist) relies on the preposition из (of/from) to connect to its object. The preposition из always requires the Genitive case, so the end result is similar: the following phrase must be in the Genitive.
Normally "two rooms" is две комнаты with the noun in Genitive singular. Why is it двух комнат here?
When "two" is in the Nominative case (as a subject), it takes a Genitive singular noun (две комнаты). But here, the preposition из forces the whole phrase into the Genitive case, so the number changes to its Genitive form (двух). When a number is in any case other than Nominative or inanimate Accusative, the noun drops the "singular" rule and simply matches the number's case in the plural. Therefore, we must use the Genitive plural комнат.
How do we form the Genitive plural комнат from комната?
For most feminine nouns ending in -а, you form the Genitive plural by dropping that final vowel, resulting in a "zero ending." So, комната drops the -а and becomes комнат.
Why does the number two take the form двух instead of двоих?
Двух is the standard Genitive form of the regular number два/две (two). Двоих is the Genitive form of the collective numeral двое, which is typically used with groups of men, baby animals, or nouns that only exist in the plural (like jeans or glasses). Since комната is a standard feminine noun, we use the regular number form двух.
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