SNAKES'
SNAKES'
The singular form for the plural noun snakes is snake; the singular possessive form is snake's.
The possessive singular noun for snake is snake's, e.g. "The snake's fangs are very sharp."The possessive plural noun for snake is snakes', e.g. "There's a pile of old snakes' skins over there."
Rattlesnakes is already plural. The plural of rattlesnake is rattlesnakes.
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'.