Compare each case across both numbers. The forms below are the noun's stored reference paradigm.
Singular and plural case forms for чёрт
Case
Singular
Plural
Nominative
чёрт
черти
Accusative
чёртаReviewed spelling/form variant:чертаAccepted in practice
чертей
Genitive
чёртаReviewed spelling/form variant:чертаAccepted in practice
чертей
Dative
чёртуReviewed spelling/form variant:чертуAccepted in practice
чертям
Instrumental
чёртомReviewed spelling/form variant:чертомAccepted in practice
чертями
Prepositional
чёртеAccepted spelling without ё:чертеAccepted in practice
чертях
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 · Singularчёрт- + -а → чёрта
Keep the stored stem and add -а.
Show all case-build notes
Nominative · Singularчёрт
This is the dictionary form used to identify the noun.Nominative · Pluralчёрт → черти
The stem changes in this stored form, so a simple ending replacement would be misleading.Accusative · Singularчёрт- + -а → чёрта
Keep the stored stem and add -а.Accusative · Pluralчёрт → чертей
The stem changes in this stored form, so a simple ending replacement would be misleading.Genitive · Singularчёрт- + -а → чёрта
Keep the stored stem and add -а.Genitive · Pluralчёрт → чертей
The stem changes in this stored form, so a simple ending replacement would be misleading.Dative · Singularчёрт- + -у → чёрту
Keep the stored stem and add -у.Dative · Pluralчёрт → чертям
The stem changes in this stored form, so a simple ending replacement would be misleading.Instrumental · Singularчёрт- + -ом → чёртом
Keep the stored stem and add -ом.Instrumental · Pluralчёрт → чертями
The stem changes in this stored form, so a simple ending replacement would be misleading.Prepositional · Singularчёрт- + -е → чёрте
Keep the stored stem and add -е.Prepositional · Pluralчёрт → чертях
The stem changes in this stored form, so a simple ending replacement would be misleading.