Compare each case across both numbers. The forms below are the noun's stored reference paradigm.
Singular and plural case forms for задача
Case
Singular
Plural
Nominative
задача
задачи
Accusative
задачу
задачи
Genitive
задачи
задач
Dative
задаче
задачам
Instrumental
задачейLong instrumental variant:задачеюAccepted in practice
задачами
Prepositional
задаче
задачах
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.
Genitive · Singularзадач- + -и → задачи
Remove -а and add -и.
Show all case-build notes
Nominative · Singularзадача
This is the dictionary form used to identify the noun.Nominative · Pluralзадач- + -и → задачи
Remove -а and add -и.Accusative · Singularзадач- + -у → задачу
Remove -а and add -у.Accusative · Pluralзадач- + -и → задачи
Remove -а and add -и.Genitive · Singularзадач- + -и → задачи
Remove -а and add -и.Genitive · Pluralзадач- + zero ending → задач
Remove -а; this form has a zero ending.Dative · Singularзадач- + -е → задаче
Remove -а and add -е.Dative · Pluralзадач- + -ам → задачам
Remove -а and add -ам.Instrumental · Singularзадач- + -ей → задачей
Remove -а and add -ей.Instrumental · Pluralзадач- + -ами → задачами
Remove -а and add -ами.Prepositional · Singularзадач- + -е → задаче
Remove -а and add -е.Prepositional · Pluralзадач- + -ах → задачах
Remove -а and add -ах.