The possessive form of the plural noun coaches is coaches'.
The apostrophe at the end of the word indicates that something belongs to two or more coaches.
Example: You'll find the coaches' offices at the end of the corridor.
The possessive form of the singular noun "coach" is coach's (sounds the same as the plural coaches). The plural possessive is coaches' (also sounds exactly the same).
The plural form of the noun boy is boys.The plural possessive form is boys'.Example: The boys' coach is Mr. Potter. (the coach of the boys)Of course if you are referring to some property of the toys, the possessive would fall on the noun "toys" for which the possessive form would be toys' (for the same reason illustrated above).
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 Mexicans. The plural possessive is Mexicans'.
The plural form is echoes. The plural possessive is echoes'.
The plural form is suffixes. The plural possessive is suffixes'.
The plural form is stepsisters. The plural possessive is stepsisters'.
The plural form is inches. The plural possessive is inches'.
The plural form of the noun coach is coaches.Nouns ending in ch, sh, s, x, and z add -es to the end of the word to form the plural.Example: The coaches are meeting to set the schedule for the track.
The plural possessive of "Father" is, "Fathers"