GRAMMAR- POSSESSIVE 'S

The possessive form is used with nouns referring to people, groups of people, countries, and animals. It shows a relationship of belonging between one thing and another. To form the possessive, add apostrophe + s to the noun. If the noun is plural, or already ends in s, just add an apostrophe after the s.

EXAMPLES

• the car of John = John's car
• the room of the girls = the girls' room
• clothes for men = men's clothes
• the boat of the sailors = the sailors' boat

For names ending in s, you can either add an apostrophe + s, or just an apostrophe. The first option is more common. When pronouncing a possessive name, we add the sound /z/ to the end of the name.

EXAMPLES

• Thomas's book (or Thomas' book)
• James's shop (or James' shop)
• the Smiths's house (or the Smiths' house)

FUNCTIONS OF THE POSSESSIVE

'Belonging to' or 'ownership' is the most common relationship the possessive expresses.

EXAMPLES

• John owns a car. = It is John's car.
• America has some gold reserves. = They are America's gold reserves.

The possessive can also express where someone works, studies or spends time

EXAMPLES

• John goes to this school. = This is John's school.
• John sleeps in this room. = This is John's room.

The possessive can express a relationship between people.

EXAMPLES

• John's mother is running late.
• Mrs Brown's colleague will not be coming to the meeting.

The possessive can express intangible things as well.

EXAMPLES

• John's patience is running out.
• The politician's hypocrisy was deeply shocking.

FIXED EXPRESSIONS

There are also some fixed expressions where the possessive form is used.

EXAMPLES WITH TIME

• a day's work
• a month's pay
• today's newspaper
• in a year's time

OTHER EXAMPLES

• For God's sake! (= exclamation of exasperation)
• a stone's throw away (= very near)
• at death's door (= very ill)
• in my mind's eye (= in my imagination)

The possessive is also used to refer to shops, restaurants, churches and colleges, using the name or job title of the owner.

EXAMPLES

• Shall we go to Luigi's for lunch?
• I've got an appointment at the dentist's at eleven o'clock.
• Is Saint Mary's an all-girls school?

Time to practice with family members

Try to solve the following exercise:

example: My mother's sister is my  aunt.

1. My daughter's brother is my .
2. My father's daughter is my .
3. My mum and dad are my .
4. My sister's son is my .
5. My aunt's son or daughter is my .
6. My father's brother is my .
7. My mother's father is my .
8. My daughter's son is my .
9. My brother's daughter is my .

fuentes: https://www.ef.com/ca/english-resources/english-grammar/forming-possessive/

              https://www.ego4u.com/en/cram-up/vocabulary/family/exercises?04