What's the Difference Between Whose and Who’s?

The difference between "whose" and "who’s" lies in their usage and meaning. "Whose" is a possessive pronoun used to indicate ownership, as in "Whose book is this?"

On the other hand, "who’s" is a contraction of "who is" or "who has," such as in "Who’s coming to the meeting?"

Understanding when to use each term is crucial for clear and correct communication in English.

Understanding "Whose"

"Whose" is a possessive pronoun used to indicate ownership. It is used to ask or tell about something that belongs to someone.

Examples:

  • Whose book is this?

  • I don’t know whose car that is.

  • Can you tell me whose pen this is?

  • Whose idea was it to start the meeting early?

  • The artist whose work we admired has a new exhibit.

In these examples, "whose" asks about ownership. It is essential in questions where you inquire about possession.

Common Mistakes: Often, people confuse "whose" with "who’s." This happens when the possessive nature of "whose" is overlooked.

Examples:

  • Incorrect: Who’s book is this?

  • Correct: Whose book is this?

  • Incorrect: Do you know who’s idea this was?

  • Correct: Do you know whose idea this was?

In the incorrect examples, "who’s" is mistakenly used instead of "whose." Remember, "whose" is about possession.

Understanding "Who’s"

"Who’s" is a contraction of "who is" or "who has." It combines these words to make sentences more concise.

Examples:

  • Who’s coming to the party?

  • Who’s seen my keys?

  • Do you know who’s in charge here?

  • Who’s completed the assignment?

  • Who’s going to explain the project to the team?

In these examples, "who’s" shortens "who is" or "who has." It helps to streamline sentences, making them more straightforward.

Common Mistakes: Misusing "who’s" when "whose" is intended is a frequent error.

Examples:

  • Incorrect: Whose coming to the party?

  • Correct: Who’s coming to the party?

  • Incorrect: Whose seen my keys?

  • Correct: Who’s seen my keys?

In the incorrect examples, "whose" is mistakenly used instead of "who’s." Always remember, "who’s" means "who is" or "who has."

Key Differences Between "Whose" and "Who’s"

Grammar Rules: "Whose" shows possession, while "who’s" is a contraction.

Contextual Clues: To determine which form to use, consider the context of the sentence.

Examples:

  • Whose jacket is this? (possession)

  • Who’s the new teacher? (contraction for "who is")

  • Whose responsibility is it to lock the door? (possession)

  • Who’s responsible for the report? (contraction for "who is")

By understanding the sentence's context, you can decide whether to use "whose" or "who’s."

Practice Exercises

Fill-in-the-Blanks: Choose between "whose" and "who’s" for the sentences below.

  • _______ going to the store?

  • I wonder _______ idea this was.

  • Do you know _______ car is parked outside?

  • _______ been using my computer?

  • _______ job is it to clean the office?

In these exercises, think about the sentence’s meaning. Is it asking about possession or shortening "who is"?

Correction Exercises: Identify and correct errors in the following sentences.

  • Incorrect: Whose coming to dinner?

  • Correct: Who’s coming to dinner?

  • Incorrect: Whose the person in charge here?

  • Correct: Who’s the person in charge here?

  • Incorrect: I don’t know who’s keys these are.

  • Correct: I don’t know whose keys these are.

  • Incorrect: Whose been eating my lunch?

  • Correct: Who’s been eating my lunch?

These exercises help reinforce the correct usage of "whose" and "who’s."

Quick Tips and Tricks

Mnemonic Devices: Remember that "who’s" has an apostrophe, similar to "it’s" for "it is." This small trick can help you quickly recall the correct form.

Usage Summary Chart: A simple chart can help you remember:

  • Whose = possessive (ownership)

  • Who’s = contraction (who is/who has)