To show possession with regular plural nouns add an apostrophe (‘) at the end.
- Airplane’s wings
(one airplane)
Airplanes’ wings
(many airplanes) - The cats’ beds
- Two-year olds’ activities
To show possession with irregular plural nouns add an apostrophe and -s at the end.
- Your child’s toys
(one child)
Your children’s toys
(many children) - The sheep’s wool
(one sheep)
The sheep’s wool
(many sheep) - Father-in-law’s duties
(one father-in-law)
Fathers-in-law’s duties
(many fathers-in-law)
If many nouns possess another noun then only the last noun is in the possessive form.
- Juliet, Romeo and William’s holiday is next week.
(They will all go on holiday together next week.) - William and Mary’s house is at the end of the street.
If many nouns possess their own noun then all of the nouns will be in the possessive form.
- Juliet’s, Romeo’s and William’s holidays are next week.
(They will all go on different holidays next week.) - William’s and Mary’s houses are next to each other.
