The plural form for the noun loaf is loaves; the plural possessive form is loaves'.
Consider this example:
The chef complained that the loaves' crusts were too thick.
The plural possessive form of "loaf" is "loaves'."
bread
Singular possessive: secretary's Plural: secretaries Plural possessive: secretaries'
The plural is lads. The plural possessive is lads'.
The plural is relatives. The plural possessive is relatives'.
The plural form is suffixes. The plural possessive is suffixes'.
The plural possessive of stepsister is stepsisters'.
The possessive form for the singular noun loaf is loaf's.Example: The loaf's crust was brushed with garlic butter.
Singular possessive: secretary's Plural: secretaries Plural possessive: secretaries'
The plural is lads. The plural possessive is lads'.
The plural is relatives. The plural possessive is relatives'.
The plural form is Mexicans. The plural possessive is Mexicans'.
The plural form is suffixes. The plural possessive is suffixes'.
The plural possessive of stepsister is stepsisters'.
The plural form is echoes. The plural possessive is echoes'.
The plural form is inches. The plural possessive is inches'.
Coaster's is singular possessive. The plural is coasters, the plural possessive is coasters'.
The plural possessive form of "weeks" is "weeks'."
The plural possessive of bandit is bandits'.