Examples of possessive adjectives are words like my, your, his, her, its, our, and their that show ownership or association before a noun. They modify nouns directly and appear before the noun they describe.
These adjectives are essential in forming clear, specific sentences. Unlike possessive pronouns such as mine or yours, which stand alone, possessive adjectives must precede a noun. For example, "her book" shows ownership without needing a separate pronoun.
They are part of a core set of determiners in English grammar. According to the Cambridge Grammar of English, possessive adjectives are used to indicate who owns or is associated with something. Their function is strictly grammatical-they do not carry emotional weight or emphasis.
Each possessive adjective corresponds to a subject pronoun. They agree in person and number with the owner, not the object. This agreement ensures clarity in meaning.
For instance, "My sister lives in Boston." Here, "my" refers to the speaker, and "sister" is the possessed item. The adjective matches the first-person singular subject. Similarly, "Their teacher gave us homework" uses "their" to match the plural subject "they."
Incorrect usage breaks this rule. Saying "His friend likes her shoes" is correct because "his" matches "he," and "her" matches "she." Using "him" instead of "his" creates a grammatical error: "Him friend likes her shoes" is ungrammatical in standard English.
The seven standard possessive adjectives in English are:
| Subject Pronoun | Corresponding Possessive Adjective | Example Sentence |
|---|---|---|
| I | my | My phone is charging. |
| you | your | Your jacket is on the chair. |
| he | his | His keys are missing. |
| she | her | Her painting won the award. |
| it | its | The cat licked its paw. |
| we | our | Our team scored first. |
| they | their | Their house has a red door. |
Each adjective functions identically: it modifies a noun that follows it. No exceptions exist in standard English. Even in informal speech, "me" or "us" cannot replace "my" or "our" in this role.
A common mistake is confusing possessive adjectives with possessive pronouns. "Mine" is a pronoun; "my" is an adjective. "This is my pen" uses the adjective. "This pen is mine" uses the pronoun. The former requires a noun after it; the latter stands alone.
One frequent error is using "your" when "you're" is meant. "Your" shows possession ("Your turn is next"), while "you're" is a contraction of "you are." Confusing them changes meaning entirely.
Another misstep is placing the adjective after the noun. "The book is hers" is correct. "The book is her" is incorrect unless used in poetic or archaic contexts. Modern English requires the possessive adjective before the noun.
A non-obvious point: "its" has no apostrophe. Many learners incorrectly write "it's" (which means "it is" or "it has") when they mean "its." For example, "The dog wagged its tail" is correct. "The dog wagged it's tail" is a grammatical error.
Consider a student writing a lab report: "The experiment used our equipment and measured their results." Here, "our" refers to the group conducting the experiment, and "their" refers to the participants being studied. Both adjectives identify ownership.
Now, revise the sentence to include a mix-up: "The experiment used us equipment and measured them results." This version fails because "us" and "them" are objective pronouns, not possessive adjectives. The sentence becomes ungrammatical and ambiguous.
Another example: "She lost her keys. Her brother found them." The repetition of "her" clarifies ownership. Without it, "She lost keys. Brother found them" lacks precision. The possessive adjective maintains clarity across sentences.
In formal writing, especially academic or legal documents, possessive adjectives prevent ambiguity. A contract clause like "The tenant shall pay their rent on time" uses "their" to refer to a singular person whose gender is unspecified. This reflects inclusive language standards recognized by the American Psychological Association.
Do not use possessive adjectives when the noun is already modified by another determiner. For example, "This is the book I borrowed" uses "the" and "I" rather than "my." "My book" would be redundant if "the" is already present.
Also avoid doubling adjectives. "My his car" is invalid. Only one possessive adjective can modify a single noun. Multiple possessives require restructuring: "I saw his car" not "my his car."
When describing relationships, use possessive adjectives to avoid confusion. "John's mother called me" uses an apostrophe to show possession. But "John's mother called my mother" uses "my" correctly before "mother." The structure relies on the possessive adjective to define ownership.
As a personal observation, during a grammar workshop, a participant wrote "Me phone is broken." Correcting it to "My phone is broken" clarified the sentence instantly. The change wasn't about formality-it was about accuracy in identifying the subject.