USE:
The Saxon Genitive ('s) is a form to express possession in English with the nouns for people, animals, countries and expressions of time.
It substitutes the preposition "of", changing the order of the words:
POSSESSOR’S + POSSESSION
The book of Mary - Mary's book
FORMS:
1 - If the noun referring to the possessor is singular, we add 's after it.
My brother's computer / The dog's leash / Africa's population / Yesterday's newspaper
Attention! If the name of the possessor ends in "s", there are two options:
We can add 's (James's car) or simply ' (James' car).
The first option (s's) is more common in Modern English and it is always pronounced /iz/.
2 - If the noun referring to the possessor is plural (various possessors) and it ends in –s, we only add ':
My friends' phones / The boys' room
But IRREGULAR plural nouns (not ending in -s), add 's:
Those women's magazines / The children's toys
DON'T USE THE SAXON GENITIVE WITH OBJECTS:
The door of the house / The pages of the diary
