Explain when to use each pronuon and the difference between the two types of relative of relative

Pronouns are used to replace nouns in a sentence to avoid repetition and make the language more concise. There are different types of pronouns, such as personal pronouns, possessive pronouns, reflexive pronouns, demonstrative pronouns, etc. Let's focus on personal pronouns and relative pronouns.

Personal pronouns are used to refer to specific people or things. They can be further categorized into subject pronouns (I, you, he/she/it, we, they) and object pronouns (me, you, him/her/it, us, them). Subject pronouns are used as the subject of a sentence, whereas object pronouns are used as the object of a sentence.

Examples:
- Subject pronoun: She is a doctor.
- Object pronoun: I gave the book to him.

Relative pronouns, on the other hand, are used to introduce relative clauses, which provide extra information about a noun in the sentence. There are two types of relative pronouns: restrictive and non-restrictive.

1. Restrictive Relative Pronouns:
These pronouns introduce essential or necessary information about the noun they refer to. They do not use commas before or after them. The most common restrictive relative pronouns are "who," "whom," "that," and "whose."

Examples:
- The boy who is sitting over there won the contest.
- The house that we visited last week is for sale.

2. Non-Restrictive Relative Pronouns:
These pronouns introduce additional or non-essential information about the noun they refer to. They are separated by commas before and after them. The most common non-restrictive relative pronouns are "who," "whom," "which," "whose," and "that."

Examples:
- My sister, who is a teacher, loves to read books.
- My car, which is parked outside, needs to be repaired.

In summary, personal pronouns are used to replace nouns and can be either subject pronouns or object pronouns. Relative pronouns introduce relative clauses that provide additional information about a noun. They can be either restrictive or non-restrictive, depending on whether the information is necessary or additional.

There are two types of pronouns: personal pronouns and relative pronouns. Additionally, there are two types of relative clauses: defining and non-defining relative clauses. Let's go through each in detail:

1. Personal Pronouns: Personal pronouns are used to replace or refer to nouns that represent people, animals, places, things, or concepts. Here are the different types and when to use them:

- Subject Pronouns: These are used as the subject of a sentence. For example: "He is a doctor."
- Object Pronouns: These are used as the object of a verb or preposition. For example: "I gave her a book."
- Possessive Pronouns: These indicate possession or ownership. For example: "This book is mine."
- Reflexive Pronouns: These are used when the subject and object of a sentence refer to the same person or thing. For example: "She hurt herself."
- Demonstrative Pronouns: These indicate or point to specific objects or people. For example: "This is my car."

2. Relative Pronouns: Relative pronouns are used to introduce relative clauses, which provide more information about a noun in a sentence. The two types of relative clauses are:

- Defining Relative Clauses: These provide essential information about the noun they modify and cannot be removed from the sentence without changing its meaning. They are usually introduced by the pronouns "that," "who," "whom," or "which." For example: "The book that I bought is on the shelf."
- Non-defining Relative Clauses: These provide additional, non-essential information about the noun they modify and are set off by commas. They are usually introduced by the pronouns "who," "whom," "which," or "whose." For example: "Mary, who is my best friend, lives in London."

In summary, personal pronouns are used to replace or refer to nouns, while relative pronouns are used to introduce relative clauses, which provide additional information about a noun. The difference between defining and non-defining relative clauses lies in their essential or non-essential nature and their punctuation.

To understand when to use each pronoun, let's first discuss the two types of pronouns: personal pronouns and relative pronouns.

1. Personal Pronouns:
Personal pronouns are used to refer to specific people or things. They vary depending on the person (first, second, or third) and the grammatical case (subject, object, possessive) in which they are used. Here are the different forms of personal pronouns:

- First Person: Refers to the speaker or the speaker's group.
- Subjective Case: I, we
- Objective Case: me, us
- Possessive Case: my/mine, our/ours

- Second Person: Refers to the person or group being spoken to.
- Subjective Case: you
- Objective Case: you
- Possessive Case: your/yours

- Third Person: Refers to people or things that are being talked about.
- Subjective Case: he, she, it, they
- Objective Case: him, her, it, them
- Possessive Case: his, her/hers, its, their/theirs

2. Relative Pronouns:
Relative pronouns are used to introduce dependent clauses and connect them to the main clause. They relate or refer back to a noun or pronoun mentioned earlier. There are two commonly used relative pronouns:

- "Who" and "Whom": Used for referring to people.
- "Who" is used as the subject of the relative clause.
- "Whom" is used as the object of the verb or preposition in the relative clause.

For example:
- The girl who is wearing a red dress is my sister. (Who acts as the subject)
- The student whom the teacher praised got the highest grade. (Whom acts as the object)

- "Which" and "That": Used for referring to things or animals.
- Both "which" and "that" can act as the subject or object of the relative clause.

For example:
- The book that I am reading is very interesting. (That acts as the subject)
- The dog which/that I adopted is very friendly. (Which/That acts as the object)

In summary, personal pronouns are used to directly refer to people or things, while relative pronouns are used to introduce dependent clauses and connect them to the main clause by referring back to a noun or pronoun.