This is the 7946th most frequent Russian word.
ковалевой
"Ковалевой" is the genitive or instrumental singular form of "Ковалева," a Russian surname.
Used as a proper noun in the dative case describing the recipient of a gift.
Ковалевой подарили книгу на день рождения.
Kovaleva was given a book for her birthday.
Used as part of a descriptor indicating possession, referring to the family surname in the genitive case.
Этот дом принадлежит Ковалевой семье.
This house belongs to the Kovaleva family.
Used as a proper noun in the instrumental case indicating the person involved in the meeting.