Which Sentences Contain Relative Clauses? — Check All That Apply
Ever stared at a worksheet, saw a list of sentences, and wondered “Do I really need to spot the relative clause, or can I just guess?” Trust me, you’re not alone. The moment you realize a relative clause can change the whole meaning of a sentence, the whole exercise stops feeling like a random drill and becomes a tiny puzzle you actually want to solve.
Below is the ultimate guide to spotting relative clauses, the common traps that make us all miss them, and a quick‑fire checklist you can use the next time you see a “check all that apply” question on a test or in a classroom activity Took long enough..
What Is a Relative Clause, Anyway?
A relative clause is a mini‑sentence that hangs off a noun or pronoun and gives you extra info—usually introduced by a who, whom, whose, which, that or sometimes where, when, why. Think of it as a side‑kick that explains who or what the main noun is.
It sounds simple, but the gap is usually here.
The Two Main Types
- Defining (restrictive) relative clause – tells you which specific person or thing you’re talking about. No commas.
Example: The book that fell off the shelf was priceless. - Non‑defining (non‑restrictive) relative clause – adds extra, non‑essential info. It’s set off by commas.
Example: My brother, who lives in Seattle, is visiting next week.
Both types are “clauses” because they have a subject and a verb. That’s the key: if you can find a subject‑verb pair introduced by one of those relative words, you’ve got a relative clause It's one of those things that adds up..
Why It Matters
If you can spot a relative clause, you instantly understand why a sentence is saying what it is. In academic writing, mis‑identifying a clause can turn a fact into a vague claim. In standardized tests, a single missed clause can cost you points.
Real‑world example:
The employee who finished the report early got a bonus.
If you ignore the relative clause, you might think any employee got a bonus, not just the one who finished early. That’s a huge difference in meaning.
How to Spot a Relative Clause – Step by Step
Below is the practical, no‑fluff method you can apply in seconds Small thing, real impact..
1. Look for the Trigger Words
Scan the sentence for who, whom, whose, which, that, where, when, why. If you see one, you’re probably on the right track.
2. Ask “Is There a Subject‑Verb Pair?”
After the trigger word, can you identify a subject doing something?
The car that speeded away → that is the subject, speeded is the verb → relative clause Easy to understand, harder to ignore..
3. Check If It Modifies a Noun
Ask yourself: Which noun is this extra info describing?
The teacher who loves jazz → modifies teacher And that's really what it comes down to..
4. Decide If It’s Defining or Non‑Defining
If the clause is essential to identify the noun, no commas. In practice, if it’s just extra, commas will be present. Either way, it’s still a relative clause.
5. Beware of “That” vs. “Which” in Non‑Restrictive Clauses
That never appears in a non‑restrictive clause. If you see commas, the clause will use which or who.
Common Mistakes – What Most People Get Wrong
Mistake #1: Confusing Adjective Phrases with Relative Clauses
The red car parked outside – “red” is an adjective, not a clause. No subject‑verb pair, so no relative clause.
Mistake #2: Ignoring Reduced Relative Clauses
Students reading the textbook will pass → “reading the textbook” is a reduced relative clause (the verb are is omitted). It still counts.
Mistake #3: Mistaking Prepositional Phrases for Relative Clauses
The house on the hill is abandoned. – “on the hill” is a prepositional phrase, not a clause.
Mistake #4: Over‑Marking “Because” as a Relative Word
Because introduces a subordinate clause, not a relative clause.
She left early because she was tired – not a relative clause.
Mistake #5: Missing Relative Clauses Inside Quotations
He said, “I’ll call you when I arrive.” – The when I arrive part is a relative clause embedded in the quote Not complicated — just consistent..
Practical Tips – What Actually Works
- Underline the trigger word, then the next verb. If you can draw a line from who to runs, you’ve got a clause.
- Replace the clause with a simple adjective. If the sentence still makes sense, you’ve identified a relative clause.
The dog that barked loudly scared the cat → The loud‑barking dog scared the cat. - Read the sentence aloud. The natural pause before a non‑defining clause (commas) often hints at a relative clause.
- Create a quick cheat sheet:
who/whom → people
which/that → things
whose → possession
where/when → places/times - Practice with “check all that apply” quizzes. Mark every sentence that has a subject‑verb pair after a trigger word. If you’re unsure, flag it and come back after reviewing the whole list.
FAQ
Q: Can a sentence have more than one relative clause?
A: Absolutely. The teacher who lives next door, whose cat is black, who also writes poetry, is my favorite. Each clause adds a layer of detail.
Q: Are relative clauses ever introduced by “that” without a noun before it?
A: No. That must refer back to a noun. She bought a dress that was on sale works because that refers to dress.
Q: What about “as” or “than” – are they relative words?
A: Not in standard English. They introduce comparative clauses, not relative clauses Small thing, real impact..
Q: Do infinitive phrases count as relative clauses?
A: No. He has a plan to travel is an infinitive phrase, lacking a relative pronoun.
Q: How do I handle reduced relative clauses in a test?
A: Look for a verb ending in ‑ing or ‑ed that directly modifies a noun without a relative pronoun. They still count as relative clauses.
Wrapping It Up
Spotting relative clauses isn’t a mysterious talent reserved for grammar nerds. It’s a matter of hunting for trigger words, confirming a subject‑verb pair, and seeing which noun gets the extra info. Once you internalize the five‑step scan, those “check all that apply” questions become a breeze The details matter here..
This changes depending on context. Keep that in mind Most people skip this — try not to..
Next time you open a worksheet, remember: the short version is look for who/which/that, find a verb, and ask what noun it describes. If you can do that, you’ll never miss a relative clause again. Happy hunting!
