The plural form of the noun boat is boats.
The plural possessive form is boats'.
Example: The boats' owners came to assess the damage after the storm.
Theirs is the plural possessive pronoun for 'he'. For example:Mack and Mike bought a new boat, that one must be theirs.Their is the plural adjective for 'he'. For example:Mack and Mike bought a new boat, that must be their boat.
The correct plural possessive form is "your parents' car".example: I see a new boat attached to your parents' car.
Singular possessive: secretary's Plural: secretaries Plural possessive: secretaries'
The plural is relatives. The plural possessive is relatives'.
The plural is lads. The plural possessive is lads'.
The plural form is echoes. The plural possessive is echoes'.
The plural form is suffixes. The plural possessive is suffixes'.
The plural form is Mexicans. The plural possessive is Mexicans'.
The plural form is stepsisters. The plural possessive is stepsisters'.
The plural form is inches. The plural possessive is inches'.
The plural possessive of "Father" is, "Fathers"
The plural possessive of bandit is bandits'.