Compare each case across both numbers. The forms below are the noun's stored reference paradigm.
Singular and plural case forms for мозг
Case
Singular
Plural
Nominative
мозг
мозги
Accusative
мозг
мозги
Genitive
мозга
мозгов
Dative
мозгу
мозгам
Instrumental
мозгом
мозгами
Prepositional
мозгеLocative after в:мозгуAccepted in practice
мозгах
Form pattern
How the forms are built
The paradigm above is authoritative. These notes expose a transparent ending change only when the stored declension family supports one.
Nominative · Pluralмозг → мозги
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.
Show all case-build notes
Nominative · Singularмозг
This is the dictionary form used to identify the noun.Nominative · Pluralмозг → мозги
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.Accusative · Singularмозг → мозг
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.Accusative · Pluralмозг → мозги
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.Genitive · Singularмозг → мозга
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.Genitive · Pluralмозг → мозгов
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.Dative · Singularмозг → мозгу
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.Dative · Pluralмозг → мозгам
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.Instrumental · Singularмозг → мозгом
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.Instrumental · Pluralмозг → мозгами
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.Prepositional · Singularмозг → мозге
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.Prepositional · Pluralмозг → мозгах
This form belongs to a reviewed special pattern, so it is shown as a stored form rather than a guessed suffix swap.