Is our a preposition? No, our is a possessive determiner (or possessive adjective), not a preposition. The idea that words like our, my, or your belong to the preposition category is a persistent confusion that mixes up word classes in English grammar. Prepositions show spatial, temporal, or logical relationships between nouns and other elements, whereas our modifies a noun to indicate ownership or belonging.
If you've ever second-guessed your writing because a rigid online grammar quiz or a faulty style rule flagged a possessive word, you're not alone. Let's clear up why this mix-up happens, how parts of speech actually function, and how to classify words correctly every time.
Understanding the True Role of Our
To understand why our isn't a preposition, look at how it behaves in a sentence. Consider the phrase our house. Here, our sits directly in front of the noun house to specify whose house it is.
In modern linguistics, our is classified as a possessive determiner (historically called a possessive adjective). It performs the exact same grammatical function as articles like the or a, or demonstratives like this or that.
- Determiner: Our car broke down.
- Determiner: The car broke down.
- Determiner: That car broke down.
None of those italicized words are prepositions. They are determiners because they limit or qualify the noun that follows them. A preposition, by contrast, cannot stand alone before a noun without establishing an explicit positional or directional relationship (such as in, on, under, or through).
What Actually Defines a Preposition?
Prepositions form a closed class of words that link nouns, pronouns, or phrases to other words within a sentence. They typically indicate direction, time, location, or spatial relationships.
Standard examples of prepositions include:
- In the drawer
- On the table
- Before noon
- Through the window
- Without hesitation
Notice that prepositions require an object of the preposition to complete their phrase. You can say in the house, but you cannot say our the house. If our were a preposition, it would take a nominal object directly. Instead, our modifies the noun directly without an intervening prepositional link.
According to authoritative style references like The Chicago Manual of Style, possessive pronouns and determiners belong entirely to the pronominal and determiner systems, separate from adpositions.
Why Do People Get Confused?
The confusion between possessive determiners and prepositions usually stems from overlapping semantic roles rather than grammatical structure. Both can indicate a relationship of belonging or connection.
For instance, consider these two constructions:
- Our team won the championship.
- The team of us won the championship.
In the second sentence, the preposition of creates a possessive or associative link. Because our translates roughly to "belonging to us," some amateur grammar guides mistakenly lump possessive determiners into prepositional categories based on meaning rather than syntax.
Grammar classifies words by syntax (how they behave structurally in a sentence) rather than semantics (what they mean). Since our behaves syntactically like the or my, it is categorized as a determiner, regardless of its possessive meaning.
Pronoun vs. Determiner: The Case of Ours
Writers often confuse our with ours. While both relate to possession, they have different grammatical jobs:
- Our is a possessive determiner. It must always precede a noun (our project, our timeline).
- Ours is a independent possessive pronoun. It can stand alone without a following noun (The victory is ours).
Neither of these words functions as a preposition. Understanding this distinction prevents errors when editing tight prose or teaching basic syntax.
Common Grammar Myths That Trip Up Writers
The myth that our is a preposition is part of a broader pattern of rigid, outdated rules that confuse modern writers. Other frequent misconceptions include:
- The split infinitive rule: Believing you can never put an adverb between to and a verb (e.g., to boldly go is entirely valid in English).
- Ending sentences with prepositions: The old Latin-derived superstition that trailing a preposition (e.g., What are you looking at?) is grammatically incorrect.
- Confusing count and mass nouns: Misapplying rules for less and fewer in casual writing contexts where native speakers naturally blend them.
Clearing up these myths lets you focus on clarity, rhythm, and audience engagement rather than imaginary constraints.
Frequently Asked Questions
Is our a pronoun?
Our is a possessive determiner derived from the personal pronoun we. While related to pronouns, modern grammarians classify it as a determiner because it modifies a noun.
Can our be used at the beginning of a sentence?
Yes, our frequently starts sentences when attached to the subject noun phrase, such as in Our new product launches next Tuesday.
What is the difference between our and are?
Our is a possessive determiner indicating belonging. Are is a conjugated form of the verb to be. They sound identical in many dialects, which causes frequent spelling errors.
Where can I check official parts of speech definitions?
For rigorous linguistic standards, consult academic databases like the Linguistic Society of America for detailed breakdowns of word classes.
