Yes, the form book's is the singular possessive form.
Example: The book's cover is torn.
The plural form for the noun book is books; the plural possessive form is books'.
The possessive form of the singular noun freshman is freshman's.Example: The freshman's books were stacked on his bed.
The possessive form of the singular noun librarian is librarian's.Example: The librarian's desk was stacked with books.
The possessive form of the noun is desk's.Example: The desk's top was a heap of books and papers.
The singular possessive noun is stepchild's.
"Firefly's" is a singular possessive noun.
The singular noun is tooth.The singular possessive noun is tooth's.
Because the noun books is plural, the apostrophe that shows it's a possessive goes after the s: books'.Example: Most of the books' covers were undamaged.If a noun is singular, the apostrophe usually goes before the s: book's. So, if the noun is plural: The books' important lessons made a positive impression on everyone who read them. (More than one book.) But if it's singular: The book's important lessons made a positive impression on everyone who read it. (Just one book.)
The singular possessive form for the noun brush is brush's.
The noun vest is the singular form.The noun vest's is the singular possessive form.
No, the noun creatures' is the possessive form of the plural noun creatures.The singular possessive form is creature's.
No, "she's" stands for she is. The singular possessive noun for a female is her or hers.
Yes, "story's" is the singular possessive form of the noun "story."