The plural form of the compound noun brother-in-law is brothers-in-law.
The plural possessive form is brothers-in-law's.
example: Both of my brothers-in-laws birthdays are on the same day.
The plural form for the noun citizen is citizens.The plural possessive form is citizens'.Example: The bridge was funded by hundreds of citizens' contributions.
The plural of comrade is comrades.
The plural of the noun survey is surveys.
The possessive form of the proper noun Ms. Smith is Ms. Smith's.example: Ms. Smith's office is on the second floor.
The possessive form of the proper noun Ms. Sloan is Ms. Sloan's.Example: I'm watching Ms. Sloan's dog while she is out of town.
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'.
Studies' is the plural possessive of study.
Coaster's is singular possessive. The plural is coasters, the plural possessive is coasters'.