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Relative Clause

Definition#

A type of dependent clause that provides extra information about a noun in the main clause.The noun that be modified is called antecedent.

Function#

They serve as an adjective to modify the noun. That’s why they are also called adjective clause.

Features#

Usually, they come after the noun they modify. Basic relative clauses begin with relative words which include relative pronouns and relative adverbs.

Leading words#

1. Relative Pronouns#

PronounUsed ForExample (Restrictive)Example (Non-Restrictive)
WhoPeople (subject)The woman who lives here is a doctor.My sister, who lives in Paris, is visiting.
WhomPeople (object) formalThe man whom I met was friendly.The director, whom we admire, gave a speech.
WhosePeople/Things (possession)That’s the student whose book I found.My boss, whose opinion I value, agreed.
WhichThings & AnimalsThe book which is on the table is mine.This laptop, which I bought last year, is fast.
ThatPeople, Things & Animals (Only in Restrictive clauses)The movie that we saw was great.My car, that is red, is fast. (Incorrect)

Key Point: “That” cannot be used to introduce a non-restrictive clause (the one with commas). Use “which” or “who” for those.

2. Relative Adverbs#

These replace a preposition + relative pronoun (like in whichon whichfor which) and refer to a time, place, or reason.

AdverbRefers ToReplacesExample
WhenTimein/on/at whichI remember the day when we met. (the day on which we met)
WherePlacein/at whichThis is the house where I grew up. (the house in which I grew up)
WhyReasonfor whichTell me the reason why you are late. (the reason for which you are late)

Usage Note: Relative adverbs are almost always used in restrictive clauses. They are less common in non-restrictive clauses, but possible (e.g., The concert, when it finally started, was amazing.).

Hints for choosing relative word#

**We choose the relative word based on the grammatical role it plays in the dependent clause.

flowchart TD
A[Start:Identify the antecedent noun in the main clause]
B{What is the role of the relative word in the dependent clause}
C("Replaces a subject,object,<br>or shows possession")
D("Replaces information about time,place,<br>or reason")
E[Use a relative pronoun]
F[Use a relative adverb]
G{Which relative pronoun}
H{Which relative adverb}
I[person]
J[thing/animal]
K[time]
L[place]
M[reason]
O("subject:who<br>object:who/whom/that<br>possession:whose")
P("subject:that/which<br>object:that/which<br>possession:whose")
Q(when)
R(where)
S(why)
A --> B
B --> C
B --> D
C --> E
D --> F
E --> G
F --> H
G --> I
G --> J
I --> O
J --> P
H --> K
H --> L
H --> M
K --> Q
L --> R
M --> S

Main types#

1.Restrictive relative clause#

Provides essential information about the noun.

2.Non-restrictive relative clause#

Provides non-essential information about the noun.

3.Reduced relative clauses#

Reduce: Remove the relative pronoun and linking verb.

Reduce if:

  • 1.The relative clause uses a relative pronoun+progressive verb/passive form/adjective/prepositional phrase
  • 2.The relative pronoun functions as the object of the clause.

Examples#

  • 1.This marker,which is bought by my company,is red.

  • 2.The computer that he bought online is fast.

  • 3.The computer that he bought at a second-hand shop is slow.

  • 4.The guy (who is) talking to the teacher is my roommate.

  • 5.This is the book (that) you recomended.

  • 6.Which of these drinks (that are on the table) is yours?

  • 7.Did everyone who took the trip get sick?

  • 8.This is the place (where) we first met.

  • 9.Do you remember the time (when) we met on a family trip to Europe?

Tips of identifying relative clause#

    1. punctuation: Restrictive relative clauses sometimes have commas around them.
  • 2.A phrase that begins with a relative pronoun.

  • 3.A phrase that follows a noun and gives extra information.

  • 4.If we remove the relative clauses the whole sentence is still grammatically correct.

Relative Clause
https://fishlet.top/posts/relative_clause/
Author
Ember
Published at
2025-10-15
License
CC BY-NC-SA 4.0