What is a participle clause in English?

A reduced clause that replaces a relative or adverbial clause using a participle. 'The woman who is sitting over there' reduces to 'The woman sitting over there'. 'Because it was written in 1920, the book...' reduces to 'Written in 1920, the book...'. Cambridge tests your ability to recognise and produce these reductions.

When do I use -ing and when -ed in participle clauses?

If the subject PERFORMS the action → -ing (present participle): 'The girl reading a book' = the girl who reads. If the subject RECEIVES the action → -ed/-en (past participle): 'The letter written by the director' = the letter that was written. The test: can you insert 'who is' (active) or 'which was' (passive) before the participle?

In which parts of the B2 First do participle clauses appear?

Part 2 (Open Cloze): HIGH intensity — the gap asks for the participle (-ing or -ed) that reduces an implied relative clause. Part 4 (Key Word Transformation): HIGH intensity — transform a full sentence into a participle clause. Parts 5-7: they appear in reading texts as contextual comprehension.

Why do learners confuse -ing/-ed in participle clauses?

Because in many languages the same participle form covers both active and passive: 'sitting in the corner' and 'written in 1920' may both use a past participle equivalent. But in English, 'sitting' is -ing (he sits = active) while 'written' is -ed (it was written = passive). The active/passive distinction in participial clauses is uniquely explicit in English.

Can I start a sentence with a participle in English?

Yes, it's a very frequent device in formal texts and in Cambridge exams: 'Having finished the report, she left the office' (perfect participle = after finishing). 'Surrounded by mountains, the village was difficult to reach' (past participle = since it was surrounded). The initial participle ALWAYS refers to the subject of the main clause — if not, it's a dangling participle (error).

Participle Clauses (-ing/-ed) in B2 First | Mastery

Where it appears in the exam

Cambridge format example

The researchers found that students 4 in regular physical activity performed significantly better in exams than those who did not exercise.

↑ The student writes the answer with no options

"taking" — Reduces 'students who take part in' → 'students taking part in'. The subject (students) PERFORMS the action → -ing participle. The 'part' after the gap confirms the collocation 'taking part in'.

Cambridge format example

PARKED

The car which was parked outside the bank belonged to the manager.

The car the bank belonged to the manager.

The student restructures the sentence using the keyword

"parked outside" — 2 words. 'Which was parked' reduces to 'parked'. The car RECEIVES the action (it was parked) → past participle. The keyword PARKED already provides the participle — you just need to remove 'which was'.

Cambridge format example

KNOWING

Because she didn't know anyone at the party, Maria decided to leave early.

at the party, Maria decided to leave early.

The student restructures the sentence using the keyword

"Not knowing anyone" — 3 words. 'Because she didn't know' → 'Not knowing'. The subject (Maria) PERFORMS the action (not knowing) → -ing. Negation is marked with 'not' before the participle, not with 'didn't'.

What is it?

Participle clauses are reductions of relative or adverbial clauses. Instead of saying 'The man who is sitting in the corner', you reduce to 'The man sitting in the corner'. Instead of 'Because it was written in 1920, the book...', you reduce to 'Written in 1920, the book...'. At B2 level, the difficulty is NOT knowing they exist — it is deciding whether the participle takes -ing (active: the subject does the action) or -ed/-en (passive: the subject receives the action).

Why it matters in the exam

Directly tested in Part 2 and Part 4. In Part 2, the gap asks for the participle that reduces an implied relative clause — you must produce the correct form (-ing or -ed) with no options. In Part 4, transforming a full sentence into a participle clause is a recurring pattern: 'The book which was published in...' → 'The book PUBLISHED in...'. Additionally, in Writing, using participle clauses demonstrates advanced grammatical range and boosts your score.

The cognitive trap

Instinct

"The instinct: "The woman sat next to me" (using -ed for an active action)"

Why your brain does this: in many languages, the same participle form covers both 'sitting' (active) and 'written' (passive). Your brain doesn't automatically distinguish between 'the subject does' and 'the subject receives' when choosing participle form.

Rule

"The man sitting" (-ing = active) vs "The book written" (-ed = passive)

The English rule: the participle form IS the signal: -ing = the subject DOES the action, -ed/-en = the subject RECEIVES the action. Learners tend to use past participle for everything. The clue: is the subject an agent or a patient?

Recognition pattern

-ing or -ed?

Does the subject RECEIVE the action of the participle?

SÍ

Did the action happen BEFORE the main action?

SÍ

Having been + past participle: 'Having been repaired, the car ran smoothly'

NO

Past participle (-ed/-en): 'Written in 1920, the book...'

NO

Did the participle action happen BEFORE the main action?

SÍ

Having + past participle: 'Having finished the report, she left'

NO

Is the action simultaneous with the main action?

SÍ

-ing participle: 'Walking home, she noticed a cat'

NO

Different structure (see LC1, Verb Tenses)

In the exam, look for the key signal first. The answer follows.

Recognition signals in the exam

Signal Form

Noun + ___ + complement (without 'who/which/that') Participle reducing a relative: -ing (active) or -ed (passive)

"The people ___ outside" → 'waiting' (they wait = -ing)

Signal Form

___ + by + agent (at start or after comma) Past participle (-ed/-en) — 'by' confirms passive

"___ by the noise, she woke up" → 'Disturbed' (she was disturbed)

Signal Form

Comma + ___ + complement (at start of sentence) Adverbial participle clause — the subject is the main clause subject

"___ the door open, he walked in" → 'Finding' (he found = -ing)

Signal Form

Not + ___ (start of sentence) Negated -ing participle: 'Not knowing' = Because she didn't know

"Not ___ what to say, she remained silent" → 'knowing'

Signal Form

Having + ___ (start of sentence) Active perfect participle: action prior to the main one

"Having ___ the exam, she went to celebrate" → 'passed'

Signal Form

Inanimate subject + ___ (book, letter, city...) Likely past participle — objects RECEIVE actions

"The castle, ___ in the 15th century, attracts many visitors" → 'built'

Signal Form

Person + ___ + verb of perception/emotion -ing participle if the person PERFORMS the action

"The children ___ in the garden looked happy" → 'playing'

Mistakes Cambridge exploits

Wrong

"The woman sat next to me was reading a newspaper."

Your brain produces the past participle 'sat'. But 'sat' implies someone placed her there. She sits on her own → -ing.

Right

"The woman sitting next to me was reading a newspaper."

-ing participle: the woman SITS (active action). Reduces 'who was sitting'.

Wrong

"Writing in simple language, the manual was easy to follow."

'Writing' implies the manual WRITES — but a manual doesn't write, it is written. Inanimate subject + creation action → almost always past participle.

Right

"Written in simple language, the manual was easy to follow."

Past participle: the manual WAS WRITTEN (receives the action). Reduces 'Because it was written'.

Wrong

"Finishing her homework, she went out to play."

'Finishing' indicates simultaneity — she would be finishing WHILE going out. For sequential actions (first one, then the other), you need 'having + PP'.

Right

"Having finished her homework, she went out to play."

Active perfect participle: she finished (prior action) then went out. 'Having + PP' marks temporal sequence.

Wrong

"Don't knowing the answer, he left the question blank."

Negation in participle clauses NEVER uses auxiliaries (don't, didn't, doesn't). Only 'not' + participle.

Right

"Not knowing the answer, he left the question blank."

Negation of the participle: 'not' goes BEFORE the participle. Reduces 'Because he didn't know'.

Why your brain gets it wrong

The learner's short circuit

Analyse the trap by exam format

Part 2 — Open Cloze

The bridge, ______ over 200 years ago, is still used by thousands of people every day.

Your brain

You wrote building ✗

Correct built ✓

Your brain associates 'bridge' + construction and produces 'building' (-ing). But a bridge doesn't BUILD ITSELF — it was built by someone. The subject (bridge) RECEIVES the action → past participle.

The signal

over 200 years ago

'The bridge' = inanimate object + '200 years ago' = completed action in the past. A bridge doesn't build — it IS built. Inanimate subject + creation action → past participle.

→ built

Inanimate subjects = almost always -ed

When the subject is an object (bridge, book, letter, painting, building), the action is almost always RECEIVED, not performed. Cambridge uses inanimate subjects to provoke the -ing error. Object + creation/modification action = past participle.

Strategy

Ask yourself: can this subject DO the action? A bridge can't 'building'. A letter can't 'writing'. If the answer is no → past participle (-ed/-en).

Participle clauses (-ing/-ed) is 1 of 82

The exam tests 82 grammar competencies across 19 families. Mastering one is the first step. Automating all 82 is passing.

Tiempos verbales 6

Modales 5

Pasiva y causativa 2

Condicionales 6

Infinitivo, gerundio y participio 5

Énfasis y orden de palabras 4

Oraciones de relativo 4

Reported Speech 4

Comparativos y superlativos 5

Conectores 5

Preposiciones 4

Colocaciones y phrasal verbs 4

Formación de palabras 6

Determinantes y cuantificadores 4

Adjetivos y adverbios 5

Preguntas y negación 4

Patrones verbales 3

Concordancia y ortografía 3

Vocabulario 3

Related competencies

Practise this topic with real exercises

Participle clauses (-ing/-ed) in B2 First

Where it appears in the exam

Part 2 — Open Cloze (present participle)

Part 2 — Open Cloze (past participle)

Part 4 — Key Word Transformation (relative → participle)

Part 4 — Key Word Transformation (adverbial → participle)

Recognition pattern

The learner's short circuit

Participle clauses (-ing/-ed) is 1 of 82