Question

Can the pronoun “everything” be used in the genitive case?

Answer 1

Yes, it can be used in the genitive case.  

For example:

Think of everything. - Подумай обо всем.

She will take care of everything. - Она обо все позаботится.

Answer 2

The pronoun "everything" is typically not used in the genitive case in English. The genitive case is used to show possession or association, and "everything" is generally considered an indefinite pronoun that doesn't change its form to indicate possession.

For example:

• Everything I own is in that box. (Here, "everything" is not in the genitive case; it's the subject of the sentence.)
• I found a book with everything's pages torn out. (This is an unusual and somewhat awkward construction. Normally, you would say "the pages of everything.")

In most cases, you would use other pronouns or nouns in the genitive case to indicate possession or association, such as "someone else's," "everyone else's," "the book's," or "the car's."