The plural possessive form of "author" is "authors'." Add an apostrophe after the "s" when indicating that something belongs to more than one author. So if you're talking about a book written by multiple authors, you'd say "the authors' book." Easy peasy lemon squeezy.
The singular possessive form is heart's; the plural possessive form is hearts'.
The noun 'sister' is not plural and is not possessive.The plural form is sisters.The possessive form is sister's.The plural possessive form is sisters'.
The plural form is cockroaches; the plural possessive form is cockroaches'.
The plural form is squirrels. The plural possessive is squirrels'.
The singular possessive is author's. The plural possessive is authors'.
The singular possessive is author's. The plural possessive is authors'.
The plural form for the noun author is authors.The plural possessive form is authors'.Example: The authors' annual awards will be announced on Friday.
The plural form for the noun author is authors.The plural possessive form is authors'.Example: The authors' annual awards will be announced on Friday.
The singular possessive form is heart's; the plural possessive form is hearts'.
The plural form is valleys. The plural possessive is valleys'.
The plural form is replies. The plural possessive is replies'.
The plural form is founders. The plural possessive is founders'.
No, it is singular, the possessive form of it is its. The plural form of it is they or them, and the possessive form is their.To answer the question directly: there is no such word as ITS'.
The plural form is branches. The plural possessive is branches'.
The plural possessive is experiments'.
The plural possessive form of "mass" is "masses'".
The plural form is ravines. The plural possessive is ravines'.