They’re or Their – Common Grammar Mistake

The English language is filled with nuances that can trip up even the most experienced writers and speakers. One of the most frequent grammar mistakes involves confusing “they’re” and “their.”


Confused about “They’re or Their”? Learn the key differences, practical examples, and simple tips to avoid this common error in English writing and boost your grammar confidence effortlessly!

Though these words sound alike, they have entirely different meanings and uses. This article explores the differences, provides helpful tips to avoid confusion, and offers real-world examples for clarity.


What Does “They’re” Mean?

“They’re” is a contraction of “they are.” It is used when referring to a group of people or things performing an action or being described in a certain way. If you can replace the word with “they are” and the sentence still makes sense, you’re using “they’re” correctly.

Example:

  • They’re planning a trip to Paris next summer.
    (They are planning a trip to Paris next summer.)

Key Tip:

Always expand “they’re” to “they are” in your mind. If the sentence works, you’re on the right track.


What Does “Their” Mean?

“Their” is a possessive adjective. It indicates that something belongs to a group of people or things. It is used to describe ownership or association.

Example:

  • The team is celebrating their victory.
    (The victory belongs to the team.)

Key Tip:

Think of “their” as equivalent to “my” or “your,” but for a group.


Why Is This Mistake So Common?

The confusion arises from the fact that “they’re” and “their” are homophones. They sound the same when spoken but have distinct meanings and spellings. This phonetic similarity often leads to errors, especially in casual writing or typing.

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Scenario Examples to Illustrate the Difference

Scenario 1: An Office Email

Subject: Update on Project Deadlines

Dear Team,

Please ensure that they’re aware of the new deadlines for the marketing project. Also, let them know we’ll need their input on the presentation by Friday.

Best regards,
Anna

Analysis:

  • “They’re” is correctly used as a contraction of “they are.”
  • “Their” shows possession, referring to input belonging to “them.”

Scenario 2: A School Announcement

Subject: Parent-Teacher Meeting

Dear Parents,

We are pleased to announce that the teachers have shared their availability for parent-teacher meetings next week. They’re excited to discuss your child’s progress and plans for the upcoming term.

Kind regards,
Principal Harper

Analysis:

  • “Their” refers to availability belonging to the teachers.
  • “They’re” means “they are” and expresses the teachers’ enthusiasm.

Scenario 3: A Casual Text

Message:
Hey Jamie,

I heard they’re hosting a barbecue at their house this weekend. Are you planning to go?

Cheers,
Ryan

Analysis:

  • “They’re” = “they are” (hosting a barbecue).
  • “Their” = possession (the house belongs to “them”).

Common Tricks to Avoid Mistakes

1. Substitution Test

Replace “they’re” with “they are.” If the sentence doesn’t work, use “their.”
Example:

  • Incorrect: The students forgot they’re books.
  • Correct: The students forgot their books.

2. Ownership Check

Ask yourself: Does the sentence involve something owned by a group? If yes, use “their.”
Example:

  • Incorrect: The team is celebrating they’re victory.
  • Correct: The team is celebrating their victory.

3. Listen for Contraction Clues

Look for verbs or actions that follow the word. If a verb comes right after, it’s likely “they’re.”
Example:

  • They’re working late tonight.
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Describe Difference Between “They’re” or “Their”

The following table summarizes the differences between “they’re” and “their.”

WordMeaningUsageExample
They’reContraction of “they are”Refers to actions or descriptions of a groupThey’re excited to start the project.
TheirPossessive adjectiveShows ownership or associationTheir house is at the end of the street.

Conclusion

Understanding the difference between “they’re” and “their” is crucial for clear and effective communication. By using substitution tests, checking for ownership, and paying attention to context, you can easily avoid this common grammar mistake. Practice using these words correctly in emails, conversations, and writing to build confidence and fluency.

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