Case is the inflected form of the noun indication the grammatical
relation in which .the noun stands to other parts of the sentence
English nouns have a two case system: the common
case/the basic form/
and the genitive case/the possessive case./
The genitive case of all singular nouns /which are used in it, of
course of those plurals which don’t have the number morpheme –s / is
built up by means of the morpheme –s which is added to the base form .For
example:
- Singular :boy-boy’s
- Student-student’s
- Plural man-men’s
- Woman-woman’s
In the genitive of personal names ending in sibilants the morpheme
–s is optional , but the apostrophe and the pronunciation /-iz/ are
obligatory.For example:
Common case Possessive case
Burns
Burn’s/-iz/ poems
Boz
Boz’s/-iz/ sketches
Fox
Fox’s/-iz/ articles