Synthesis of Sentences is an important grammar-based topic for the English section of NDA and CDS examinations. Questions from this topic test a candidate’s ability to combine two or more simple sentences into one meaningful and grammatically correct sentence without changing the original idea.
The NDA & CDS 2 2026 English Synthesis of Sentences Live Class focused on helping candidates understand the relationship between two sentences and select the most appropriate way to combine them into a single sentence. The session emphasised grammar, vocabulary, sentence structure, conjunctions, clauses, participles, infinitives, prepositions, and other grammatical devices required to form a coherent sentence.
Importance of Synthesis of Sentences in NDA and CDS
Synthesis questions test whether candidates can understand the relationship between ideas and express them using an appropriate grammatical structure.
This topic helps assess:
- Knowledge of sentence structure
- Understanding of clauses
- Use of conjunctions
- Knowledge of grammar rules
- Vocabulary and expression
- Logical understanding of relationships between ideas
- Ability to construct meaningful sentences
A strong command of Synthesis of Sentences can also support preparation for Sentence Improvement, Choosing Correct Sentences, Completion of Sentences, Ordering of Sentences, and other grammar-based topics.
Objectives of the Live Class
The primary objective of the session was to help candidates understand how two separate sentences can be combined without changing their essential meaning.
The class enabled candidates to:
- Identify the relationship between two sentences.
- Select suitable connecting words.
- Combine sentences grammatically.
- Maintain the original meaning.
- Recognise appropriate clauses and phrases.
- Avoid unnecessary repetition.
- Eliminate grammatically incorrect combinations.
- Improve accuracy and speed in MCQs.
Understanding Synthesis of Sentences
Synthesis means combining separate sentences into one complete sentence.
For example:
He was tired. He continued working.
These two sentences can be combined as:
Although he was tired, he continued working.
The two original ideas remain intact, but they are connected through a suitable conjunction to create a single meaningful sentence.
The central skill in synthesis is therefore not simply joining sentences but understanding how their ideas are related.
Identifying the Relationship Between Sentences
Before combining two sentences, candidates must determine the relationship between them.
Common relationships include:
- Cause and effect
- Contrast
- Condition
- Purpose
- Time
- Result
- Reason
- Addition
- Concession
- Comparison
- Sequence
- Explanation
Identifying this relationship makes it easier to select the appropriate grammatical structure.
Combining Sentences Showing Cause and Effect
When one sentence gives a reason and the other describes its result, candidates can use expressions such as:
- Because
- Since
- As
- Therefore
- So
- Hence
- Consequently
For example:
He worked hard. He succeeded.
can be combined as:
He succeeded because he worked hard.
The relationship between the two ideas determines the appropriate connector.
Combining Sentences Showing Contrast
When two sentences express contrasting ideas, candidates can use:
- Although
- Though
- Even though
- But
- Yet
- However
- Despite
- In spite of
For example:
He was ill. He attended the meeting.
can become:
Although he was ill, he attended the meeting.
The contrast between the two ideas must be preserved.
Combining Sentences Showing Condition
Conditional relationships can be expressed using:
- If
- Unless
- Provided that
- As long as
- In case
For example:
Work hard. You will succeed.
can be expressed as:
If you work hard, you will succeed.
Candidates must understand which condition is necessary for the result to occur.
Combining Sentences Showing Purpose
When one sentence explains the purpose behind an action, candidates may use:
- To
- In order to
- So that
- In order that
For example:
He went to the library. He wanted to study.
can become:
He went to the library to study.
Understanding the intended purpose helps candidates choose the correct structure.
Combining Sentences Using Participles
Participial constructions can be used to combine sentences that have closely related subjects or actions.
For example:
He saw the police. He ran away.
can be combined as:
Seeing the police, he ran away.
Candidates need to ensure that the participial phrase logically refers to the correct subject.
Combining Sentences Using Infinitives
Infinitives can be particularly useful when one sentence expresses purpose.
For example:
He went to Delhi. He wanted to meet his friend.
can become:
He went to Delhi to meet his friend.
Candidates were encouraged to recognise situations where an infinitive provides a concise and grammatically appropriate combination.
Combining Sentences Using Relative Clauses
Relative clauses can be used to combine sentences that contain information about the same noun.
Words such as:
- Who
- Whom
- Whose
- Which
- That
can help connect the ideas.
For example:
I met a man. He was a doctor.
can become:
I met a man who was a doctor.
This technique allows additional information to be incorporated into a single sentence.
Combining Sentences Using Conjunctions
Conjunctions are among the most important tools used in sentence synthesis.
They can express relationships such as:
- Addition: and
- Contrast: but
- Choice: or
- Reason: because
- Condition: if
- Concession: although
- Time: when, while, before, after
Candidates must choose a conjunction according to the relationship between the sentences rather than selecting one simply because it sounds familiar.
Importance of Preserving the Original Meaning
One of the most important rules of synthesis is that the original meaning should not be changed.
A grammatically correct sentence may still be incorrect if it alters the relationship or emphasis of the original sentences.
Candidates should therefore ask:
“Does the combined sentence convey exactly the same idea as the original sentences?”
If the answer is no, the option should be reconsidered.
Examination-Oriented Practice
The live class focused extensively on multiple-choice questions in which candidates were required to combine two sentences into one.
For each question, candidates were expected to:
- Read both sentences carefully.
- Understand their individual meanings.
- Identify their relationship.
- Determine the appropriate grammatical structure.
- Examine the available options.
- Eliminate options that change the meaning.
- Select the most grammatically and contextually appropriate sentence.
This approach helped candidates develop a systematic method for solving synthesis questions.
Common Errors Made by Aspirants
Candidates frequently make mistakes in Synthesis of Sentences questions because they focus only on grammar and ignore meaning.
Common errors include:
- Using the wrong conjunction.
- Changing the original meaning.
- Creating unnecessary repetition.
- Using an incorrect tense.
- Misplacing clauses or phrases.
- Using inappropriate relative pronouns.
- Creating sentence fragments.
- Choosing an option because it sounds natural without checking the original relationship.
The session highlighted the importance of combining grammar with logic.
Techniques for Solving Synthesis Questions
Read Both Sentences Carefully
Understand what each sentence is saying before attempting to combine them.
Identify the Relationship
Determine whether the sentences express cause, contrast, condition, purpose, time, result, addition, or another relationship.
Look for Common Elements
Identify common subjects, objects, actions, or ideas that can help simplify the combined sentence.
Select the Appropriate Structure
Choose between conjunctions, relative clauses, participles, infinitives, prepositional phrases, or other structures according to the relationship.
Check Grammar
Verify tense, subject-verb agreement, pronouns, modifiers, and clause structure.
Check Meaning
Ensure that the combined sentence conveys the same idea as the original sentences.
Eliminate Incorrect Options
Remove options that are grammatically incorrect, logically inappropriate, or different in meaning.
Role of Grammar in Synthesis of Sentences
Synthesis requires a strong foundation in several areas of grammar, including:
- Nouns and pronouns
- Verbs and tenses
- Conjunctions
- Prepositions
- Adjectives and adverbs
- Clauses
- Participles
- Infinitives
- Relative pronouns
- Sentence structure
Therefore, candidates who revise these grammatical concepts thoroughly will find Synthesis questions considerably easier.
Importance of Vocabulary and Expression
Grammar alone is not sufficient. Candidates must also understand the meaning of words and expressions used in the sentences.
A strong vocabulary helps candidates:
- Understand relationships between ideas.
- Recognise subtle differences in meaning.
- Select appropriate connectors.
- Identify logically incorrect combinations.
- Interpret complex sentence structures.
Thus, vocabulary and grammar work together in sentence synthesis.
Preparation Tips for NDA & CDS 2 2026
Candidates preparing for the upcoming examinations should:
- Revise conjunctions and their functions.
- Practise identifying relationships between sentences.
- Study different types of clauses.
- Revise participles and infinitives.
- Practise relative pronouns.
- Solve previous years’ questions.
- Practise combining sentences regularly.
- Analyse why incorrect options fail.
- Focus on preserving the original meaning.
Candidates should develop the habit of asking two questions before selecting an answer:
What is the relationship between the sentences?
Does the combined sentence preserve the original meaning?
Key Learning Outcomes from the Live Class
By the end of the Synthesis of Sentences Live Class, candidates had strengthened their ability to:
- Understand the concept of sentence synthesis.
- Identify relationships between two sentences.
- Use appropriate conjunctions and connectors.
- Combine sentences using clauses and phrases.
- Apply participles and infinitives appropriately.
- Use relative pronouns correctly.
- Maintain the original meaning while combining sentences.
- Eliminate grammatically and logically incorrect options.
- Solve synthesis-based MCQs with greater confidence and accuracy.
Conclusion
The NDA & CDS 2 2026 English Synthesis of Sentences Live Class focused on developing candidates’ ability to combine two separate sentences into one meaningful, grammatically correct, and logically connected sentence. The session highlighted that successful sentence synthesis requires much more than simply joining two statements; candidates must first understand the relationship between the ideas and then select the grammatical structure that expresses that relationship most effectively.
By mastering conjunctions, clauses, participles, infinitives, relative pronouns, and sentence structures, and by regularly practising examination-oriented questions, candidates can significantly improve their accuracy in Synthesis of Sentences and strengthen their overall performance in the English section of NDA and CDS examinations.
