The difference between they’re and their becomes easy to remember when you understand that they’re means they are, while their shows ownership. Although the two words sound alike, they perform different grammatical jobs, and choosing the correct one can make your writing clearer and more professional.
Quick note before moving on.
Introduction
They’re and their are common English words that many writers accidentally interchange. The mistake is understandable because the words are pronounced almost identically. Even so, their meanings are completely different.
- They’re is a contraction of they are.
- Their is a possessive word used to show that something belongs to or is connected with people, animals, or things.
Compare these sentences:
- They’re preparing for the examination.
- Their teacher gave them extra study materials.
In the first sentence, they’re can be expanded to they are. In the second, their tells us which teacher belongs to or is associated with the group It's one of those things that adds up..
The Core Difference
The fastest way to distinguish the words is to examine their meanings.
They’re: A Contraction
They’re combines the pronoun they with the verb are. The apostrophe replaces the letter a from are.
Examples include:
- They’re arriving early tomorrow.
- They’re excited about the school trip.
- I hope they’re ready for the presentation.
- The students finished the experiment, and they’re recording their results.
Each example can be rewritten with they are:
- They are arriving early tomorrow.
- They are excited about the school trip.
If the expansion makes sense, they’re is the correct choice Turns out it matters..
Their: A Possessive Determiner
Their indicates possession or association. It usually appears before a noun and answers the question, Which one belongs to them?
Examples include:
-
The children left their bicycles outside Practical, not theoretical..
-
The guests parked their cars along the street.
-
The researchers published their findings.
-
The dogs ran back to their owner The details matter here..
-
Each student should bring their notebook to class Small thing, real impact..
In the last example, their refers to each student, which may be singular. This is common in modern English, especially when the person’s gender is unknown, unimportant, or nonbinary.
How to Choose the Right Word
When deciding between they’re and their, use a simple replacement test.
Replace It with “They Are”
If they are fits naturally in the sentence, use they’re.
- They’re going to join us later.
- They are going to join us later.
That works, so they’re is correct.
But this does not work:
- Their going to join us later.
- They are going to join us later.
The expanded version does not make sense, so their is incorrect in that sentence No workaround needed..
Look for Ownership
If the word shows that something belongs to or is connected with a group, use their.
- Their house is near the park.
- The players packed their equipment.
- The artists displayed their paintings.
In these examples, their comes before a noun and tells us what belongs to or is associated with the group Turns out it matters..
Common Sentence Patterns
Sometimes both words appear in the same sentence:
- They’re proud of their achievements.
- They’re going to clean their room.
- I hope they’re enjoying their vacation.
- They’re preparing their presentation for tomorrow.
These sentences show the difference clearly:
- They’re = the people are doing something.
- Their = something belongs to or relates to those people.
Avoid These Mistakes
Incorrect: “Their” Without a Following Noun
Because their usually comes before a noun, it should not be used alone as a possessive pronoun.
Incorrect:
