1. Relative Pronoun the class of pronouns that usually introduces an adjective clause.
There are five relative pronouns: who, whom, whose, that, and which, and all of them may introduce adjective clauses. Adjective clauses are a group of words with at least a subject and a verb that do not express a complete thought and whose function is to modify a noun or a pronoun.
For example, in the following sentence: The suggestions that she made were very helpful, "that she made" is an adjective clause (notice that is introduced by the relative pronoun "that") and it is modifying the noun "the suggestions".
2. Indefinite Pronoun the class of pronouns that does not need a specific antecedent.
An indefinite pronoun refers to one or more objects, beings, places, ideas, etc. that are not specified. Therefore, they do not need a specific antecedent. Examples: several, anything, any, anybody, anyone, either, neither, nobody, no, none, someone, some, each, everybody, many, few, and all.
3. Demonstrative Pronoun: the class of pronouns used as an adjective to point out which person or thing is being discussed.
Demonstrative pronouns point or indicate specific things, elements, people or animals that are near or far in distance or time. In English, there are four: this, that, these and those.
4. Reflexive Pronoun the class of pronouns which turns the action back on the subject.
Intensive pronouns are made from a possessive adjective (my, your, her...) and the suffix -self (singular) or -selves (plural) and are used when the subject and the object of a sentence are the same, in other words, are the pronouns that turn the action back on the subject. For example, She takes care of herself daily. She: the subject, herself: the object.
5. Interrogative Pronoun the class of pronouns used to ask questions.
There are five interrogative pronouns are what, which, who, whom, and whose. Some examples of questions with these pronouns are: Which one do you like? Who is hanging out with you now? Whom did you speak to? Whose umbrella is this?
6. Intensive Pronoun the class of pronouns used for emphasis.
Intensive pronouns are made from a possessive adjective (my, your, her...) and the suffix -self (singular) or -selves (plural) and are used to emphasize a noun or pronoun. Here's an example: She herself straightened her hair.
7. Reciprocal Pronoun the class of pronouns made up of two-word pronouns.
Reciprocal pronouns are pronouns that indicate that an action is performed or received by two or more people at the same time. There are only two reciprocal pronouns and they both are two-word pronoun: each other and one another. Example: They used to help each other with the chores, but he hasn't been able to help since he got ill.
8. Personal Pronoun the class of pronouns that changes form for nominative, objective, and possessive cases.
Cases refer to the grammatical functions of nouns and pronouns within a sentence. In English, there are four main grammatical cases: the Nominative Case, the Possessive Case, the Objective Case, and the Vocative Case and depending on the case that the Personal Pronoun is, it changes its form.
Here's an example to illustrate how the noun Anne changes its form depending on the case: In the Nominative Case: She; in the Possessive Case: her; in the Objective Case: her, and the Vocative Case: You (The vocative case is used when someone is being addressed directly).