Here are the different types of adjectives : descriptive adjectives, adjectives of quantity,  demonstrative adjectives, and possessive adjectives. Among them, descriptive adjectives are probably the most common.

Descriptive adjectives

Among the different types of adjectives, descriptive adjectives ( careless, black, small,  long, fat, English, Mediterranean, three-cornered ) are the most numerous . Remember that adjectives modify or describe nouns only and not verbs. Adjectives describe nouns that refer to action ( kind  act,  hard  work); state that comes after linking verbs (feel  tired , was  excited ), or quality   ( strong wind, sad story). 

Descriptive adjectives describe nouns that refer to action, state, or quality ( careless, dangerous,  excited, sad, black, white, big, small, long, fat, English, Mediterranean, three-cornered ) .

Examples:

  • dangerous  chemicals
  • green  vegetables
  • square  box
  • big  nose
  • tall  tree
  • cold  morning
  • powerful  motorbike
  • English  language
  • Mediterranean  countries

Adjectives of quantity

An adjective of quantity tells us the number  ( how many ) or amount  ( how much ) of a noun. But it doesn't say  exactly how many or how much.

Examples:

  • He has eaten  three  apples.
  • I don't have  enough  girlfriends.
  • They brought along a few sandwiches.
  • There is only one  little  book on the bookshelf.
  • There are  some birds in that tree.
  • We have  much  wine for the guests. .
  • Why does a centipede has  many  legs? .

Demonstrative adjective

A demonstrative adjective comes before a noun to specifically state the noun is being referred to. For example, “ this house is not occupied” refers to this house and not the house next to it or another house which necessitates the use of the other demonstrative adjective that . Similarly, “ this ball with colorful polka dots is not the ball with colorful patches.

There are four words that are commonly used as demonstrative adjectives: this, that, these, those. We use this and that with nouns to show the nouns are singular (this/that computer = one computer) and these and those with nouns to show they are plural (these/those ants = more than one ant.)

A singular noun that is nearby, for example, would be referred to using “this.” A singular noun that is far away is “that.” A plural noun close at hand is “these,” and a plural noun in the distance is “those.” The following might be helpful to students who are learning their demonstratives:

This

  • it indicates a singular noun that is nearby.
  • That : it indicates a singular noun that is far away.
  • These : it indicates a plural noun that is nearby.
  • Those : it indicates a plural noun that is in the distance.

Examples:

  • This dog has no tail.
  • That piece of the jigsaw is still missing.
  • These slippers are worn indoors.
  • Those smelly socks are not mine.

There are other demonstrative adjectives that are expressed in more than a word: the former, the latter, the one, the other.

Examples:

  • His former girlfriend has returned to him.
  • We will move to a new house in the latter half of the year.
  • On the one hand he wants to start his own business, but on the other hand he likes his well-paid job managing a business at present.

Demonstrative adjectives should not be confused with demonstrative pronouns. Whether they are demonstrative adjectives or demonstrative pronouns depends on how they are used in a sentence. One way to distinguish between them is that demonstrative pronouns are not used before a noun. Instead, they are used by themselves in place of a noun.

Possessive adjectives

A possessive adjective, also called a possessive determiner, expresses possession of a noun by someone or something by modifying the noun. Possessive adjectives are the same as possessive pronouns. All the possessive adjectives are listed in the following table:

Possessive adjectives
Singular Plural
my our
your your
his their
her their
its their

Examples of possessive adjectives

Examples:

  • I spent  my  afternoon painting the toilet.
  • This must be  your  missing pencil.
  • His arms have a few tattoos.
  • Our  grandmothers were classmates.