Topics
- Introduction to Clauses & Phrases
- Noun Clauses
- Adjective Clauses
- Adverb Clauses
- Prepositional Phrases
- Relative Clauses
Introduction to Clauses and Phrases
Understanding clauses and phrases is essential for constructing clear and effective sentences.
What is a Phrase?
A phrase is a group of words that works together but does not contain both a subject and a verb.
“under the bridge” (prepositional phrase)
“running quickly” (verb phrase)
“the big red ball” (noun phrase)
What is a Clause?
A clause is a group of words that contains both a subject and a verb.
“She sings” (independent clause)
“when the bell rings” (dependent clause)
“because I was tired” (dependent clause)
Key Differences
Phrases
• No subject-verb combination
• Cannot stand alone as a sentence
• Functions as a single part of speech
Clauses
• Has subject and verb
• Can be independent or dependent
• Can form complete sentences
Practice
Identify whether this is a phrase or clause:
“after the storm passed”
Noun Clauses
A noun clause is a dependent clause that functions as a noun in a sentence.
Characteristics
Noun clauses:
• Begin with words like that, what, who, whom, whose, which, when, where, why, how, whether, if
• Can function as subjects, objects, or complements
• Cannot stand alone as complete sentences
Functions in Sentences
As Subject: “What she said surprised everyone.”
As Object: “I know that he is coming.”
As Complement: “The truth is that we need more time.”
Common Patterns
Subject + Verb + Noun Clause: “She believes that dreams come true.”
Noun Clause + Verb: “Whoever finishes first wins the prize.”
Preposition + Noun Clause: “We talked about what happened yesterday.”
Practice
Identify the noun clause in this sentence:
“I wonder why she left so early.”
Adjective Clauses
An adjective clause (or relative clause) is a dependent clause that modifies a noun or pronoun.
Characteristics
Adjective clauses:
• Begin with relative pronouns: who, whom, whose, which, that
• Begin with relative adverbs: when, where, why
• Follow the noun they modify
• Function as adjectives in the sentence
Examples
“The book that I borrowed is fascinating.”
“She is the person who helped me.”
“This is the house where I grew up.”
Restrictive vs. Non-restrictive
Restrictive
• Essential to meaning
• No commas
• “Students who study hard succeed.”
Non-restrictive
• Extra information
• Uses commas
• “My brother, who lives in Paris, is visiting.”
Practice
Identify the adjective clause in this sentence:
“The car that has a red roof is mine.”
Adverb Clauses
An adverb clause is a dependent clause that functions as an adverb, modifying a verb, adjective, or another adverb.
Characteristics
Adverb clauses:
• Begin with subordinating conjunctions: when, while, because, since, if, although, though, unless, until, before, after, as, so that
• Answer questions: When? Where? Why? How? To what extent? Under what condition?
• Can appear at the beginning, middle, or end of sentences
Types and Examples
Time: “When the bell rings, we will leave.”
Cause: “She succeeded because she worked hard.”
Condition: “If it rains, we will cancel the picnic.”
Contrast: “Although he was tired, he finished the race.”
Punctuation Rules
Beginning of sentence: Use comma after the adverb clause
“Because she studied hard, she passed the exam.”
End of sentence: Usually no comma needed
“She passed the exam because she studied hard.”
Practice
What question does this adverb clause answer?
“He called me when he arrived at the airport.”
Prepositional Phrases
A prepositional phrase begins with a preposition and ends with a noun or pronoun (the object of the preposition).
Structure
Prepositional phrases follow this pattern:
Preposition + Object (noun/pronoun)
• “in the house”
• “with my friends”
• “about the weather”
Functions
Adjective Phrases
Modify nouns or pronouns
“The book on the table is mine.”
(modifies “book”)
Adverb Phrases
Modify verbs, adjectives, or adverbs
“She arrived after dinner.”
(modifies “arrived”)
Common Prepositions
Location: in, on, at, under, over, above, below, between, among
Time: before, after, during, since, until
Direction: to, from, into, onto, toward
Other: of, for, with, without, about, like
Practice
Identify the prepositional phrase in this sentence:
“We walked through the dark forest.”
Relative Clauses
Relative clauses are a type of adjective clause that provide additional information about a noun.
Relative Pronouns
Who: refers to people (subject)
Whom: refers to people (object)
Whose: shows possession
Which: refers to things or animals
That: refers to people, things, or animals
Where: refers to places
When: refers to times
Why: refers to reasons
Examples
“The woman who lives next door is a doctor.”
“This is the book that I recommended.”
“The reason why I called is important.”
“That’s the restaurant where we met.”
Reduced Relative Clauses
Relative clauses can sometimes be shortened when the relative pronoun is the object:
“The book that I am reading → “The book I am reading“
“The person whom I saw → “The person I saw“
Practice
Choose the correct relative pronoun:
“This is the house _______ I was born.”