Pronouns are used to replace nouns or other pronouns to make a sentence less repetitive or awkward.  There are several types of pronouns: Reflexive Pronouns, Intensive Pronouns, Indefinite Pronouns, Relative Pronouns, Interrogative Pronouns, Demonstrative Pronouns, Subjective Personal Pronouns, Objective Personal Pronouns, and Possessive Personal Pronouns.

Reflexive Pronouns

Reflexive pronouns are used to reference the subject of the sentence.  Examples of these types of pronouns include "himself", "myself", "yourself", "itself", and "ourselves".  Here are some examples:

Anna decided it was time make herself some breakfast.

The dog found itself a toy.

Intensive Pronouns

Intensive pronouns are used to emphasize its own antecedent.  Here are some examples:

The dog itself was hungry.

Anna asked herself why she could not find food.

Indefinite Pronouns

Indefinite pronouns reference something which can be identified, but isn't specific.  Here are some examples:

Anna shared her breakfast with everyone in the room.

The dog chewed on many shoes.

Relative Pronouns

Relative pronouns can be utilized to link phrases or clauses.  Here are some examples:

Anna, who is a good cook, made some breakfast.

The dog chose whichever toy was available.

Interrogative Pronouns

This type of pronoun helps the speaker ask questions.  These include "Which", "Who", "Whom", "Whoever", "Whomever", and "whichever".

"Who wants breakfast?" Anna asked.

Which toy did the dog choose?

Demonstrative Pronouns

A demonstrative pronoun identifies and points out a noun or pronoun ("That", "This", These", etc).

This breakfast is delicious.

That dog is silly.

Subjective Personal Pronouns

This type of pronoun is used to show that the pronoun is performing the role of the subject.  These pronouns include "He", "She", "It", "You", "They", etc.

She was happy to make breakfast.

When he saw the dog, he played with it.

Objective Personal Pronouns

Objective Personal Pronouns perform as an object of a verb, a preposition, an infinitive phrase, or a compound verb.  This includes "Me", "You", "Her", "Him", "It", etc.

After making breakfast, Anna cleaned it up.

The dog brought us a bone.

Possessive Personal Pronouns

As the last type of pronoun, possessive personal pronouns indicate possession.  These include "Yours", "Mine", "Ours", etc.

That breakfast is ours.

The dog brought my shoes.