The most used possessive pronouns in the English language are his, her, my, their, your, its and our, according to a study by Oxford Online. Because the English language is so vast, it is impossible to say definitively what the most used words are, but the Oxford Online study bases its ranking on a sample of more than a billion words appearing in novels, magazines, newspapers, chatrooms, emails, blogs and more.
Possessive pronouns are pronouns that show ownership. Some possessive pronouns can be used alone, such as mine, yours, his, hers, ours and theirs, while others must modify a noun, such as my, your, his, her, its, our and their. The possessive pronouns that must modify a noun are sometimes called possessive determiners. "Whose" can function as both a stand-alone possessive pronoun, as in, "Whose is this?" and as a possessive determiner, as in, "Whose pencil is this?"
Because possessive pronouns are a basic part of English speech, several of them are among the 100 most commonly used words, according to the Oxford Online study. "His" is the most commonly used of all the possessive pronouns, and is ranked 23rd on the list of most commonly used words. Her, my, their, your, its and our are ranked 29th, 34th, 39th, 64th, 77th and 86th respectively.