The plural form of the noun granddaughter is granddaughters.
The plural possessive form is granddaughters'.
Example: Both of my granddaughter's birthdays are this week.
My granddaughters and I are going to the store.
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'.
Granddaughter is a singular, common, female noun.
My granddaughters and I are going to the store.
Singular possessive: secretary's Plural: secretaries Plural possessive: secretaries'
No. Granddaughter is a noun. Except for the possessive form (granddaughter's) there is no adjective as there is for daughter (daughterly).
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"