Chapter 3 · English Grammar

Sentence Synthesis

Advanced ⏱ 40–50 minutes 🎓 Grade 10

What you will be able to do

  • Combine two or more sentences into one
  • Synthesise using participles and infinitives
  • Synthesise using relative pronouns and conjunctions
  • Use apposition and abstract nouns to combine
  • Choose the neatest method for a given pair
Builds on / Related chapters
Grade 8 · Transformation of Sentences Grade 10 · Gap Filling, Editing & Transformation

1 Quick Introduction

English

Synthesis is the art of combining several short sentences into one well-made sentence — the opposite of analysis. ICSE papers test it directly. There are several methods (participle, infinitive, relative pronoun, apposition, abstract noun, conjunction), and the skill is choosing the one that joins the ideas most smoothly.

हिन्दी

संश्लेषण (synthesis) कई छोटे वाक्यों को एक सुगठित वाक्य में जोड़ने की कला है — विश्लेषण का उल्टा। ICSE पेपर इसे सीधे जाँचते हैं। इसके कई तरीके हैं (participle, infinitive, relative pronoun, apposition, abstract noun, conjunction), और कौशल है वह तरीका चुनना जो विचारों को सबसे सहजता से जोड़े।

2 A Real-Life Situation

Imagine this

Three choppy facts become one smooth sentence:

Choppy: Ravi is a boy. He is brave. He saved a child.

Synthesised: Ravi, a brave boy, saved a child.

Why this form? By turning 'He is brave' into the apposition 'a brave boy', three sentences become one elegant statement. Synthesis makes writing concise and mature — exactly what board examiners reward.

3 The Grammar Rule

Rule & Formula
MethodJoins byExample link
Participle-ing / -ed phraseHaving finished…, he left.
Infinitiveto + verbtoo tired to walk
Relative pronounwho/which/thatthe man who called
Appositionnoun beside nounRavi, the captain,…
Abstract nounquality as a nounher kindness…
Pick the method that links the ideas most smoothly
He finished his food. He left. → Having finished his food, he left.

4 Synthesis by Participle, Infinitive & Conjunction

Participle: turn one action into an -ing/-ed phrase.

  • He finished his food. He left. → Having finished his food, he left.
  • The work was done. He rested. → The work done, he rested.

Infinitive: use 'to + verb', often to show purpose or with too/enough.

  • He was very tired. He could not walk. → He was too tired to walk.
  • She studied hard. She wanted to pass. → She studied hard to pass.

Conjunction: join with a coordinating or subordinating conjunction.

  • He is poor. He is honest. → He is poor but honest.
  • It rained. We stayed in. → As it rained, we stayed in.
Visual — Synthesis by Participle, Infinitive & Conjunction
He finished food.He left.→Having finished his food, he left.
1
Worked Example
Synthesise (participle): She heard the news. She fainted.
Solution

Hearing the news, she fainted.

2
Worked Example
Synthesise (infinitive): He was rich enough. He could buy the car.
Solution

He was rich enough to buy the car.

Key Points

  • Participle: turn one action into an -ing/-ed phrase
  • Infinitive: 'to + verb' for purpose or with too/enough
  • Conjunction: join with and/but or because/as/though

5 Synthesis by Relative Pronoun, Apposition & Abstract Noun

Relative pronoun: turn one sentence into a who/which/that clause.

  • This is the boy. He won the prize. → This is the boy who won the prize.

Apposition (a noun phrase placed beside another, set off by commas):

  • He is the captain. He is the best player. → He, the captain, is the best player.

Abstract noun: turn an adjective/quality into a noun that becomes the subject or cause.

  • She was very kind. She helped everyone. → Her kindness made her help everyone.
  • He is honest. Everyone trusts him. → His honesty wins everyone's trust.

Noun/adjective phrase: reduce a clause to a phrase — The man, being poor, could not pay.

1
Worked Example
Synthesise (relative): I met a girl. She speaks five languages.
Solution

I met a girl who speaks five languages.

2
Worked Example
Synthesise (abstract noun): He was brave. It saved the village.
Solution

His bravery saved the village.

Key Points

  • Relative pronoun: who/which/that turns a sentence into a clause
  • Apposition: a noun phrase beside another, in commas
  • Abstract noun: a quality becomes a noun (kindness, honesty, bravery)

6 Vocabulary Builder

WordMeaningहिन्दी
Synthesiscombining sentencesसंश्लेषण
Participlean -ing/-ed verb formकृदंत
Appositiona noun beside anotherसमानाधिकरण
Abstract nouna quality named as a nounभाववाचक संज्ञा
Conciseshort and clearसंक्षिप्त
✎ Vocabulary Quick Test0 / 1
Q.Turning 'He is brave' into 'his bravery' is synthesis by:
Explanation: An adjective ('brave') becomes an abstract noun ('bravery').

7 Common Mistakes to Avoid

✗ IncorrectHaving finished her work and she left.
✓ CorrectHaving finished her work, she left.
Don't add 'and' after a participle phrase.
✗ IncorrectHe is too weak that he cannot walk.
✓ CorrectHe is too weak to walk.
'too…to', not 'too…that'.
✗ IncorrectThis is the boy which won.
✓ CorrectThis is the boy who won.
Use 'who' for people.
✗ IncorrectHe, the captain is the best player.
✓ CorrectHe, the captain, is the best player.
An appositive needs commas on both sides.

8 Practice Exercises

Fill in the BlanksLevel 1
Name the synthesis method that best joins each pair.
  1. He finished. He left. (→ Having finished…)
  2. He is the boy. He won. (→ the boy who won)
  3. He is kind. He helps all. (→ his kindness…)
  4. She was too tired. She could not run. (→ too tired to run)
  5. He is poor. He is honest. (→ poor but honest)
Answer Key
  1. participle
  2. relative pronoun
  3. abstract noun
  4. infinitive
  5. conjunction
Fill in the BlanksLevel 2
Combine the sentences as directed.
  1. He heard a noise. He woke up. (participle)
  2. She is a doctor. She lives next door. (relative)
  3. He was very weak. He could not stand. (infinitive)
  4. He is wise. His advice helps many. (abstract noun)
  5. Ravi is my friend. He is a captain. (apposition)
Answer Key
  1. Hearing a noise, he woke up.
  2. She is a doctor who lives next door.
  3. He was too weak to stand.
  4. His wisdom helps many.
  5. Ravi, a captain, is my friend.
Error Detection
  1. Having eaten and he slept.
  2. He is too poor that he cannot pay.
  3. This is the house which I was born.
  4. He the leader, is brave.
Answer Key
  1. Having eaten, he slept. (error: and)
  2. He is too poor to pay. (error: that)
  3. This is the house where I was born. (error: which)
  4. He, the leader, is brave. (error: missing comma)
Sentence Correction
  1. Being tired, the work was left undone.
  2. He is so strong to lift it.
  3. Her kind made everyone love her.
Answer Key
  1. Being tired, she left the work undone.
  2. He is strong enough to lift it.
  3. Her kindness made everyone love her.
Rearrange the Words
  1. finished / having / he / left / work / his
  2. who / boy / the / won / is / this
  3. bravery / village / his / the / saved
Answer Key
  1. Having finished his work, he left.
  2. This is the boy who won.
  3. His bravery saved the village.
Match the Following
Column AColumn B
1. Having finished…a. abstract noun
2. the man who…b. participle
3. Ravi, the captain,…c. apposition
4. her kindness…d. relative pronoun
Answer Key
Having finished… → participlethe man who… → relative pronounRavi, the captain,… → appositionher kindness… → abstract noun

9 Micro Quiz

✎ Quick Check — 5 questions0 / 5
Q1.Combine (participle): 'He saw the snake. He ran.'
Explanation: Participle phrase 'Seeing the snake, …'.
Q2.Combine (relative): 'This is the pen. I lost it.'
Explanation: Relative 'which' for a thing.
Q3.Combine (abstract noun): 'He is generous. People love him.'
Explanation: Adjective → abstract noun 'generosity'.
Q4.Combine (infinitive): 'He is strong enough. He can lift it.'
Explanation: 'enough + to + verb'.
Q5.Which uses apposition?
Explanation: 'the monitor' is an appositive beside 'Ram'.

10 Reading Practice

Riya, a hardworking student, won the science prize. Having spent months on her project, she presented it confidently. The judges, who were strict, were impressed by her clarity. Her dedication earned everyone's respect. She was too modest to boast, and her humility made her even more admired.

Comprehension Questions
  1. Identify the appositive phrase in the first sentence.
  2. Find a participle phrase and explain its function.
  3. Which abstract nouns combine ideas in the passage?
Answer Key
  1. 'a hardworking student' — placed beside 'Riya', set off by commas.
  2. 'Having spent months on her project' — it combines an earlier action with the main clause.
  3. 'dedication' and 'humility' — qualities turned into nouns that drive the sentences.

11 Speaking, Writing & Daily Use

Say these aloud
  • Having finished his work, he went home.
  • This is the girl who won the gold medal.
  • Ravi, our captain, scored the winning goal.
  • His honesty earned everyone's trust.
  • She was too tired to continue.
Take three short sentences of your own and combine them into one sentence using any synthesis method; then do it again using a different method.
Example: Sam is a boy. He is brave. He saved a dog. → Sam, a brave boy, saved a dog. / Being brave, Sam saved a dog.

12 Challenge Zone

🔥 Higher-Level Questions — 30 / 3
Q1.Combine using a participle: 'The door was locked. She felt safe.'
Explanation: An absolute (nominative) construction: 'The door being locked, …'.
Q2.Combine using an abstract noun: 'He failed. He was careless. This caused it.'
Explanation: Two adjectives become abstract nouns: 'carelessness', 'failure'.
Q3.Combine (infinitive of purpose): 'He went to the market. He wanted to buy fruit.'
Explanation: Infinitive of purpose: 'to buy fruit'.

13 Chapter Mind Map

Mind Map
      SENTENCE SYNTHESIS
                |
   +--------+---+----+---------+
   |        |        |         |
 PARTICIPLE INFINI-  RELATIVE  OTHER
 -ing/-ed   TIVE     who/which apposition
 Having..   too..to  /that     abstract
           enough.. clause     noun
 CONJUNCTION: and/but/because

14 One-Minute Revision

Remember these

  • Synthesis = combining several sentences into one
  • Participle (-ing/-ed), infinitive (to/too…to/enough…to)
  • Relative pronoun (who/which/that), conjunction (and/but/because)
  • Apposition (noun beside noun, in commas)
  • Abstract noun (kindness, honesty, bravery) turns a quality into a noun