In English grammar, what is the genitive case?

Answer by  blahblah (670)

The genitive case is normally the form of a noun that indicates possession. In English, possessives are formed by adding an apostrophe-s or s-apostrophe (for plural nouns), or by using a preposition, as in "the task of the day".

Answer by  traumatised (3285)

The genitive case in English is when one noun modifies/gives meaning to another noun. Mostly possessive (Bob's age, Lisa's hat) but can also indicate other relationships (swarm of bees, workers of the world, day of reckoning) or participation in an action (my leaving, John's murder).