One rule
It’s = it is / it has. Its = possessive form.
Proofread trick
Replace "it’s" with "it is." If the sentence breaks, use "its."
Examples
- It’s raining.
- The company changed its policy.
comparison
Its vs It’s: Possession vs Contraction
Master one of the most common apostrophe errors in English writing.
How To Use This Guide
- Read the core rule first, then compare it against the sentence you are editing.
- Check whether the word choice changes meaning, tone, grammar, or simply emphasis.
- Use the matrix below to jump into definitions and related terms when the sentence still feels unclear.
- Finish by reading the revised sentence in context, because many usage mistakes only appear at paragraph level.
Editorial Review Criteria
We review each guide for practical usefulness, not just correctness. A good usage guide should give the rule, show the exception, and help a reader make a decision in a real draft.
When examples are available, we connect the article to corpus-backed definitions, synonyms, contrasts, and sentence evidence so the advice is grounded in actual word behavior.
Word Context Matrix
Use this quick matrix to compare core words in this guide and jump directly into deeper lookup pages.
its
plural of it
it's
Contraction of it + is.
whose
Of whom, belonging to whom; which person's or people's.
who's
Who is.
Synonym and Contrast Explorer
Related words can clarify the boundary of a usage rule. Synonyms show nearby meanings; contrast words help identify what the term does not mean in context.
its
High-value alternatives
earth's air envelopeearth's surface featuresearth's surfacesgriasownership determinerpossessive adjectivepossessive determiner
it's
High-value alternatives
’tis’twas
whose
High-value alternatives
owner'sownership indicatorpossession markerpossessive determinerpossessive relative determinerpossessor'swhich person's
who's
High-value alternatives
whom's
Real Usage Examples
Example sentences pulled from our lexical corpus to show natural context.
its
If you don't understand something, it's because you aren't aware of its context.
it's
It's because you don't want to be alone.
whose
Being objective means not telling everybody whose side you are on.
who's
Holy crap, who's the asshole who dares call me in the middle of the night?!
Editing Checklist
- Confirm the sentence has the meaning the guide recommends, not just a similar sound or spelling.
- Check the surrounding paragraph for tone, because a technically correct word can still feel too formal or too casual.
- Look at the related words above when the choice depends on precision, emphasis, or contrast.
- Keep the simpler version when both options are correct and the simpler version is easier to read.
Decision Test
Before applying this guide, write the sentence both ways and ask what changes for the reader. If the change only affects surface style, it may not be worth making.
If the change affects meaning, grammar, credibility, or reader trust, use the more precise option and keep a short note for future edits.
FAQ
Why no apostrophe in possessive its?
English pronoun possessives usually do not use apostrophes.
Is this the same as who’s/whose?
Yes, same contraction-vs-possessive logic.
Review note: This guide is reviewed by the WordToolSet editorial team for practical usefulness, example quality, and alignment with our editorial standards. Source and data notes are documented on the data sources page, and corrections can be submitted through the corrections workflow.