Genitive Case

Genitive case

Genitive case is is the grammatical case that marks a noun as modifying another noun. It often marks a noun as being the possessor of another noun; however, it can also indicate various other relationships than possession.


  • Janet’s long fingers, Janet’s jacket, Janet’s drink (relationship indicating possession)
  • a wheel of cheese (a relationship indicating composition)
  • the love of music (participation in an action)
  • men of Rome (origin)
  • the capital of the Republic (reference)
  • man of honor(description)

Form of genitive case

Genitive case can be indicated by

  1. adding 's after the noun (John's brother)
  2. adding of before the noun (the end of the movie)

Spelling of 's

Spelling of the genitive case depends on whether the noun is plural, singular or ending in 's':

Type Genitive Case Explanation
singular noun the girl's room girl is singular: add 's
plural nouns the girls' room girls is plural: add '
singular noun ending s Jonas' car or Jonas's car After nouns ending in s (like Jonas) either add ' or 's
irregular plural children's toys for irregular plurals like (children) add 's

In case there are many nouns, add an 's only to the last noun.


  • Leila and Nancy's friend.