Relative Clauses and Sentence Complexity

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Concept Review

Relative Clauses: The Power Connectors of Writing

Have you ever noticed how some writers make their sentences flow like music, while others sound choppy and repetitive? The secret weapon is relative clauses — special sentence parts that connect ideas and eliminate the dreaded "repeat, repeat, repeat" problem.

A relative clause is like a bridge that connects two related ideas using special words called relative pronouns: who, whom, whose, which, and that. These clauses give us extra information about someone or something we've already mentioned.

Before and After: Watch the Magic Happen

Before (choppy): "Maya read a book. The book was about dolphins. The book won the Newbery Medal."

After (smooth): "Maya read a book about dolphins that won the Newbery Medal."

Notice how the relative pronoun "that" eliminated repetition and created one flowing sentence instead of three choppy ones.

The Comma Mystery Solved

Here's something that surprises most writers: sometimes relative clauses need commas, and sometimes they don't!

Essential (no commas): "The student who forgot her lunch sat quietly."

Nonessential (commas needed): "Sarah, who forgot her lunch, sat quietly."

The test: If you can remove the clause and still know exactly who or what you're talking about, add commas!

The Relative Pronoun Family

For People

who: The author who wrote this...
whom: The person whom I met...
whose: The girl whose backpack...

For Things

which: The movie, which was funny...
that: The book that I borrowed...

In your informational writing, relative clauses help you pack more information into fewer sentences, making your paragraphs flow better and sound more sophisticated. Instead of writing "The Amazon rainforest is in South America. It contains 40,000 plant species," you can write "The Amazon rainforest, which contains 40,000 plant species, is in South America."

🔑 Key Takeaway

Relative clauses are your secret weapon for transforming choppy, repetitive writing into smooth, sophisticated prose. Master these connecting words, and your writing will flow like music instead of stuttering like a broken record.

Sample questions

1. In the sentence 'The dog that barked all night belongs to my neighbor,' what is the antecedent of the relative pronoun 'that'?

○ night

○ neighbor

○ barked

✓ dog

Answer: dog — The antecedent is the noun that the relative pronoun refers back to. 'That' describes which dog we're talking about, so 'dog' is the antecedent.

2. True or False: In the sentence 'My sister, who loves pizza, ordered three slices,' the relative pronoun 'who' could be replaced with 'which' without changing the meaning.

○ True, because both pronouns start relative clauses

✓ False, because 'who' refers to people and 'which' refers to things

○ True, because they are both relative pronouns

○ False, because 'which' is only used in questions

Answer: False, because 'who' refers to people and 'which' refers to things — 'Who' is used when referring to people, while 'which' is used for things or animals. Since 'my sister' is a person, only 'who' is correct.

3. Which sentence correctly uses a relative pronoun and clearly shows its antecedent?

○ The book was interesting that I read yesterday.

○ I saw the movie that everyone recommended it to me.

✓ The teacher whose class I enjoy makes learning fun.

○ My friend who she lives nearby walks to school.

Answer: The teacher whose class I enjoy makes learning fun. — The relative pronoun 'whose' correctly refers back to 'teacher,' and the sentence structure is grammatically correct without extra pronouns or misplaced clauses.

Skills in this topic

Identify relative pronouns (who, whom, whose, which, that) and their antecedents
Distinguish between essential and nonessential relative clauses
Punctuate relative clauses correctly using commas when appropriate
Combine sentences using relative clauses to eliminate redundancy
Revise informational writing using relative clauses to create more sophisticated sentence structures

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