Reduced Relative Clauses: Using Participles (Post-nominal)
Grammar Rule in 30 Seconds
Trim your sentences by removing 'who is' or 'which was' to create sleek, professional participle phrases.
- Drop the relative pronoun and 'be' verb: 'The man (who is) sitting' becomes 'The man sitting'.
- Use -ing for active actions: 'The girl winning the race' (The girl who is winning).
- Use -ed for passive states: 'The car parked outside' (The car which was parked).
Overview
You can make sentences shorter. This makes your English better.
Take out words like 'who is'. Your writing will be stronger.
Take away 'that was'. For example, 'the book written last year'.
Use fewer words to say the same thing.
How This Grammar Works
The scientist who is developing the new algorithm presented her findings, who is developing becomes simply developing. The scientist is the one performing the action of developing.Formation Pattern
The theories that were developed in the 19th century still influence modern thought. → The theories developed in the 19th century still influence modern thought.
When To Use It
- 1Academic and Technical Writing: In scholarly articles, research papers, and technical reports, reduced relative clauses are invaluable for presenting complex information efficiently. They allow you to incorporate descriptive details without creating overly long or clunky sentences. For example, instead of
The methodology that was outlined in Chapter 3 provides a robust framework, writeThe methodology outlined in Chapter 3 provides a robust framework. This enhances readability and professionalism.
- 1Formal Communication: Professional emails, business proposals, and official documents benefit greatly from the conciseness offered by reduced clauses. They convey authority and directness. Consider
All personnel who are working on the project must adhere to the new guidelinesversus the more efficientAll personnel working on the project must adhere to the new guidelines. This avoids wordiness without sacrificing precision.
- 1News Reporting and Journalism: Headlines and news articles frequently use reduced clauses to save space and deliver information quickly. This is crucial for conveying core facts succinctly. A journalist might write
Authorities investigating the incident have released a statementrather thanAuthorities who are investigating the incident have released a statement. The reduced form is more immediate and impactful.
- 1Creating Nominalizations and Complex Noun Phrases: Reduced relative clauses are integral to constructing sophisticated noun phrases that encapsulate a significant amount of information. This is particularly useful when defining or categorizing items. For instance,
the device used for data encryptionis more economical thanthe device which is used for data encryption. This allows you to build dense, informative expressions common in expert discourse.
- 1Instructions and Descriptions: When providing directions, specifications, or detailed descriptions, reduced clauses help maintain clarity and avoid repetition. Think of a manual stating
The switch located on the rear panel controls powerinstead ofThe switch that is located on the rear panel controls power. The reduced form is more direct and less prone to misinterpretation.
Common Mistakes
- 1Dangling Participles (Misplaced Modifiers): This is perhaps the most notorious error. A participial phrase is intended to modify the noun immediately preceding it. When this connection is unclear, or the phrase implicitly refers to a different, unstated subject, a dangling participle occurs, leading to confusion or unintended humor. The error arises because the implied subject of the participle is not the grammatical subject of the main clause.
- Incorrect:
Walking down the street, the building appeared on the right.(Implies the building was walking.) - Correct:
Walking down the street, I saw the building on the right.(TheIclarifies who was walking.) - Incorrect:
Developed in the lab, researchers quickly published the results.(Implies researchers were developed.) - Correct:
Developed in the lab, the new compound yielded promising results.(The compound was developed.)
- 1Incorrect Active vs. Passive Participle: Learners often confuse when to use the present participle (
-ing) versus the past participle (-ed). This error indicates a misunderstanding of whether the modified noun is performing or receiving the action of the original verb.
- Incorrect:
The student interviewed for the scholarship demonstrated exceptional potential.(Implies the student received the interview, but context often means they did the interviewing in a different scenario). - Correct (if the student did the interviewing):
The student interviewing for the scholarship demonstrated exceptional potential. - Correct (if the student was interviewed):
The student interviewed for the scholarship demonstrated exceptional potential.(This is correct in passive context). The ambiguity arises when context is missing. - Clearer Incorrect Example:
The novel publishing last year received critical acclaim.(The novel doesn't publish itself.) - Correct:
The novel published last year received critical acclaim.(The novel was published.)
- 1Over-reduction / Inappropriate Reduction: Not all relative clauses can or should be reduced. The primary condition for reduction is that the relative pronoun must be the subject of the relative clause. If it's the object, reduction is generally not possible without restructuring the sentence.
- Cannot Reduce:
The colleague whom I met at the conference was very knowledgeable.(whomis the object ofmet.) - Cannot Reduce:
The city where we spent our vacation was vibrant.(This is an adverbial relative clause, not a subject relative clause.)
- 1Ambiguity: Even grammatically correct reductions can introduce temporary ambiguity if not carefully constructed. When a participial phrase could potentially modify more than one noun in a complex sentence, clarification might be needed.
The manager spoke to the employee working overtime.(Is the manager working overtime, or the employee? Context usually clarifies, but explicit phrasing might beThe manager, who was also working overtime, spoke to the employeeorThe manager spoke to the employee, who was working overtime.)
Real Conversations
While reduced relative clauses are a hallmark of formal writing, their presence in everyday conversation, though often less consciously noticed, is undeniable. You'll encounter them across various registers, from quick professional exchanges to casual social media interactions, demonstrating their inherent efficiency for conveying information.
1. Professional Settings:
In a business meeting:
`
Reduction Patterns by Voice
| Original Clause Type | Relative Clause Example | Reduced Form | Participle Used |
|---|---|---|---|
|
Active (Continuous)
|
The man who is working
|
The man working
|
Present (-ing)
|
|
Active (Simple)
|
The man who works
|
The man working
|
Present (-ing)
|
|
Passive (Simple)
|
The car which was stolen
|
The car stolen
|
Past (-ed/V3)
|
|
Passive (Continuous)
|
The car which is being fixed
|
The car being fixed
|
Being + Past Participle
|
|
Perfect (Active)
|
The man who has finished
|
The man having finished
|
Perfect Participle
|
Meanings
A reduced relative clause is a way of shortening a defining relative clause by removing the relative pronoun (who, which, that) and the auxiliary verb 'be', leaving only the participle phrase to modify the noun.
Active Reduction
Using the present participle (-ing) to replace an active relative clause, regardless of the original tense.
“People living in cities often face higher costs.”
“Anyone wanting a refund should speak to the manager.”
Passive Reduction
Using the past participle (-ed/V3) to replace a passive relative clause.
“The bridge built in 1920 is still standing.”
“Items purchased on sale cannot be returned.”
Progressive Passive Reduction
Using 'being' + past participle to indicate an action currently in progress in a passive sense.
“The house being renovated belongs to my uncle.”
“The issues being discussed are quite complex.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Active
|
Noun + [Verb-ing]
|
The girl winning the race is my sister.
|
|
Passive
|
Noun + [Verb-ed]
|
The poem written by Keats is famous.
|
|
Progressive Passive
|
Noun + being + [Verb-ed]
|
The bridge being built will be huge.
|
|
Negative Active
|
Noun + not + [Verb-ing]
|
Students not paying attention will fail.
|
|
Negative Passive
|
Noun + not + [Verb-ed]
|
The books not returned must be paid for.
|
|
Stative Active
|
Noun + [Stative-ing]
|
The box containing the files is heavy.
|
Formality Spectrum
The individual spearheading the initiative possesses remarkable talent. (Professional evaluation)
The person leading the project is very talented. (Professional evaluation)
The guy running the show is great. (Professional evaluation)
The one killing it on the project is a legend. (Professional evaluation)
The Anatomy of Reduction
Active
- Present Participle -ing
Passive
- Past Participle -ed / V3
Requirements
- Subject Pronoun Who/Which/That
- Be Verb is/am/are/was/were
Full vs. Reduced
Can I Reduce This?
Is the relative pronoun the subject?
Is there a 'be' verb?
Examples by Level
The girl sitting there is my friend.
I like the cake made by Mom.
Look at the dog running!
The book on the table is mine.
The man wearing the red hat is a doctor.
The letters sent yesterday arrived today.
I live in a house built in 1990.
The students studying hard got good grades.
Anyone wanting to join the club should sign here.
The products sold in this shop are expensive.
The woman talking to the teacher is my mother.
The car damaged in the accident was a Ford.
The candidates applying for the job must be bilingual.
The ideas discussed during the meeting were innovative.
The law, passed last year, has caused much controversy.
None of the people invited to the party showed up.
The chemicals found in this liquid are highly toxic.
The methodology employed in this study is quite rigorous.
The protesters, fearing arrest, dispersed quickly.
The house, being built on a cliff, has a great view.
The paradigm shift occurring in the industry is unprecedented.
The artifacts, unearthed during the 1920s, are now on display.
The legislation, having been amended several times, was finally passed.
The suspect, seen fleeing the scene, was later apprehended.
Easily Confused
They look the same (Verb-ing at the start or middle).
Both end in -ing.
Common Mistakes
The man is sitting there is my dad.
The man sitting there is my dad.
The car made in Japan it is fast.
The car made in Japan is fast.
The people who waiting for the bus are cold.
The people waiting for the bus are cold.
The problem solving by the team was difficult.
The problem solved by the team was difficult.
Sentence Patterns
The ___ ___ing ___ is ___.
Any ___ ___ed by ___ must ___.
Real World Usage
I have several years of experience working with international clients.
See that guy wearing the weird shirt?
The results obtained from the survey suggest a trend.
Local hero honored for bravery.
Batteries included in the box are not rechargeable.
Me trying to finish this project.
The Stative Exception
Watch for Ambiguity
Punctuation Matters
Legal Language
Smart Tips
Delete them! It almost always makes your sentence stronger and more professional.
Use 'being + V3' to keep the continuous feel.
Don't be afraid of -ing in reductions even if you can't use it in normal tenses.
Use reduced clauses to avoid repeating 'who' or 'which'.
Pronunciation
Reduced Clause Stress
In a reduced relative clause, the participle usually receives more stress than the noun it follows to emphasize the description.
Falling intonation at the end of the phrase
The books written by him (downward arrow) are on the shelf.
Indicates the end of the descriptive unit.
Memorize It
Mnemonic
Drop the 'Whiz' (Who/Which/That + Is/Was) to make your writing whiz by!
Visual Association
Imagine a pair of scissors cutting out the words 'who is' from a sentence, leaving the noun and the action word (-ing/-ed) to snap together like magnets.
Rhyme
If the noun does the act, -ing is the fact. If the noun is the receiver, -ed is the achiever.
Story
A busy editor named 'Red' (Reduction) hates the words 'who', 'which', and 'that'. Every time he sees them with a 'be' verb, he deletes them to save ink, leaving only the 'ing' and 'ed' workers to do the job.
Word Web
Challenge
Look at a news article. Find three sentences with 'who is', 'which was', or 'that are' and rewrite them as reduced relative clauses.
Cultural Notes
In Western academic culture, using reduced relative clauses is seen as a sign of high literacy and 'conciseness', which is highly valued in grading.
Headlines almost exclusively use reduced passive clauses to save space.
This construction stems from the Old English use of participles as adjectives, which was later influenced by Latin's heavy use of 'ablative absolutes' and participle phrases.
Conversation Starters
Have you ever seen a movie filmed in your hometown?
What do you think about the laws being passed regarding AI?
Journal Prompts
Common Mistakes
Test Yourself
The bridge ___ last year is already falling apart.
The people ___ for the train looked bored.
Find and fix the mistake:
The car fixing by the mechanic will be ready soon.
The students ___ ___ felt sad.
The man I met yesterday is here.
Identify the reduction.
Match each item on the left with its pair on the right:
The report ___ by the committee was rejected.
Score: /8
Practice Exercises
8 exercisesThe bridge ___ last year is already falling apart.
The people ___ for the train looked bored.
Find and fix the mistake:
The car fixing by the mechanic will be ready soon.
The students ___ ___ felt sad.
The man I met yesterday is here.
Identify the reduction.
Match them!
The report ___ by the committee was rejected.
Score: /8
Practice Bank
12 exercisesThe proposals ___ at the meeting will be reviewed next week.
The person interviewed me for the job was very friendly.
Choose the correct sentence:
Translate into English: 'El documento archivado en la nube es seguro.'
Arrange these words into a sentence:
Match the clauses:
The data ___ from various sources needs careful analysis.
Driving down the street, a large dog suddenly appeared.
Choose the best sentence:
Translate into English: 'Los estudiantes participando en el programa recibirán certificados.'
Arrange these words into a sentence:
Classify the participle usage:
Score: /12
FAQ (8)
No. You can only reduce it if the relative pronoun (who/which/that) is the *subject* of the relative clause. If it's the object, you can omit the pronoun, but you can't turn the verb into a participle.
The participle itself doesn't have a tense. The tense is determined by the main verb of the sentence. `The man sitting there *was* my friend` (Past) vs `The man sitting there *is* my friend` (Present).
Technically, yes, but it's a different type of reduction (omission of the object pronoun). In this lesson, we focus on participle reductions.
Use 'being' only if you want to emphasize that the action is *currently in progress*. Otherwise, just use the past participle.
They are very common in both formal and informal English, but they are especially useful in formal writing to avoid wordiness.
It's a sentence where the reduced clause looks like the main verb at first, confusing the reader. Example: `The horse raced past the barn fell.` (The horse [that was] raced past the barn fell).
Yes! `Anyone knowing the answer should speak up.` This is a great way to use stative verbs which usually don't take -ing.
Only if the information is non-restrictive (extra info). If it's essential to identify the noun, don't use commas.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Participios
Spanish cannot say 'el hombre corriendo' to mean 'the man who is running'; it must be 'el hombre que corre'.
Partizipialattribute
English: 'The man sitting there'. German: 'Der dort sitzende Mann'.
連体修飾 (Rentai shuushoku)
There is no 'reduction' because there is no 'who/which' to delete.
Proposition participe
French present participles are much more formal than English ones.
اسم الفاعل / اسم المفعول
Arabic participles must agree in gender and number with the noun.
的 (de) construction
The modifier always precedes the noun in Chinese, unlike the post-nominal English reduction.
Learning Path
Prerequisites
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