Level A1
Possessive 's (Saxon Genitive)
Owner + 's tells us whose: Ki's scarf.
This is Ki's scarf.
Whose scarf? Ki's. The mark and s go on the owner: Ki's scarf.
Forms
owner + 's → Ki's scarf · the boy's ball— whose? the mark and s go on the ownerthe boys → plural— s with no mark: pluralhe's = he is / he has— short form: the full words come back
A common mistake
Wrong: This is Ki scarf.
Right: This is Ki's scarf.
Whose scarf? Ki's. We say: This is Ki's scarf.
More examples
The dog's bed is small.
The dog is the owner: the dog's bed.
My sister's bag is red.
My sister is the owner: my sister's bag.