Possessive Adjectives

A possessive adjective (``my,'' ``your,'' ``his,'' ``her,'' ``its,'' ``our,'' ``their'') is similar or identical to a possessive pronoun; however, it is used as an adjective and modifies a noun or a noun phrase, as in the following sentences:

I can't complete my assignment because I don't have the textbook.

In this sentence, the possessive adjective ``my'' modifies ``assignment'' and the noun phrase ``my assignment'' functions as an object. Note that the possessive pronoun form ``mine'' is not used to modify a noun or noun phrase.

What is your phone number.

Here the possessive adjective ``your'' is used to modify the noun phrase ``phone number''; the entire noun phrase ``your phone number'' is a subject complement. Note that the possessive pronoun form ``yours'' is not used to modify a noun or a noun phrase.

The bakery sold his favorites type of bread.

In this example, the possessive adjective ``his'' modifies the noun phrase ``favorites type of bread'' and the entire noun phrase ``his favorites type of bread'' is the direct object of the verb ``sold.''

After many years, she returned to her homeland.

Here the possessive adjective ``her'' modifies the noun ``homeland'' and the noun phrase ``her homeland'' is the object of the preposition ``to.'' Note also that the form ``hers'' is not used to modify nouns or noun phrases.

We have lost our way in this wood.

In this sentence, the possessive adjective ``our'' modifies ``way'' and the noun phrase ``our way'' is the direct object of the compound verb ``have lost''. Note that the possessive pronoun form ``ours'' is not used to modify nouns or noun phrases.

In many fairy tales, children are neglected by their parents.

Here the possessive adjective ``their'' modifies ``parents'' and the noun phrase ``their parents'' is the object of the preposition ``by.'' Note that the possessive pronoun form ``theirs'' is not used to modify nouns or noun phrases.

The cat chased its ball down the stairs and into the backyard.

In this sentence, the possessive adjective ``its'' modifies ``ball'' and the noun phrase ``its ball'' is the object of the verb ``chased.'' Note that ``its'' is the possessive adjective and ``it's'' is a contraction for ``it is.''

Demonstrative Adjectives

The demonstrative adjectives ``this,'' ``these,'' ``that,'' ``those,'' and ``what'' are identical to the demonstrative pronouns, but are used as adjectives to modify nouns or noun phrases, as in the following sentences:

When the librarian tripped over that cord, she dropped a pile of books.

In this sentence, the demonstrative adjective ``that'' modifies the noun ``cord'' and the noun phrase ``that cord'' is the object of the preposition ``over.''

This apartment needs to be fumigated.

Here ``this'' modifies ``apartment'' and the noun phrase ``this apartment'' is the subject of the sentence.

Even though my friend preferred those plates, I bought these.

In the subordinate clause, ``those'' modifies ``plates'' and the noun phrase ``those plates'' is the object of the verb ``preferred.'' In the independent clause, ``these'' is the direct object of the verb ``bought.''

Note that the relationship between a demonstrative adjective and a demonstrative pronoun is similar to the relationship between a possessive adjective and a possessive pronoun, or to that between a interrogative adjective and an interrogative pronoun.