Transformation of Sentences

                                     DATE :- 06-08-2026

                            Transformation of Sentences:

 1. Simple, Compound & Complex

A. Simple Sentence

A Simple Sentence has one independent clause (one subject and one predicate).

Examples:

• He works hard.
• She is reading a book.
• We won the match.

B. Compound Sentence

A Compound Sentence has two or more independent clauses joined by a coordinating conjunction such as and, but, or, so, for, yet.

FANBOYS

F – For

A – And

N – Nor

B – But

O – Or

Y – Yet

S – So 

Examples:

• He worked hard and he passed the exam.
• She was tired but she continued her work.
• Hurry up, or you will miss the bus.

C. Complex Sentence

A Complex Sentence has one main (independent) clause and one or more subordinate (dependent) clauses joined by words like because, although, since, when, if, while, that, who, which, as.

                                                A WHITE BUS

A – Although / As

WH – Whenever / While / Where / Wherever

I – If

T – Though

E – Even if / Even though

B – Because / Before

U – Unless / Until

S – Since / So that

Examples:

• He passed the exam because he worked hard.
• When I reached the station, the train had left.
• I know that he is honest.

Rules of Transformation

i . Simple → Compound

Rule:-  Replace phrases with coordinating conjunctions (and, but, so, or).

Examples (10)

1. Being tired, he slept.
   → He was tired and he slept.
2. In spite of his poverty, he is happy.
   → He is poor but he is happy.
3. Besides being rich, he is kind.
   → He is rich and he is kind.
4. Working hard, she succeeded.
   → She worked hard and she succeeded.
5. To avoid failure, study hard.
   → Study hard or you will fail.
6. On seeing the snake, he ran away.
   → He saw the snake and he ran away.
7. Without your help, I cannot succeed.
   → Help me, or I cannot succeed.
8. In spite of the rain, they played.
   → It was raining but they played.
9. He went to school after taking breakfast.
   → He took breakfast and then he went to school.
10. By working honestly, you can succeed.
    → Work honestly and you can succeed.

ii . Compound → Complex

Rule:   Replace coordinating conjunctions with subordinating conjunctions such as because, although, if, when, since, so that, while.

Examples 

1. He worked hard, so he passed.
   → He passed because he worked hard.
2. Hurry up, or you will miss the train.
   → If you do not hurry up, you will miss the train.
3. He was ill, so he stayed at home.
   → He stayed at home because he was ill.
4. She was tired, but she continued.
   → Although she was tired, she continued.
5. Obey your parents, and you will be happy.
   → If you obey your parents, you will be happy.
6. Work hard, or you will fail.
   → If you do not work hard, you will fail.
7. The sun set, and the children returned home.
   → When the sun set, the children returned home.
8. He is poor, but he is honest.
   → Although he is poor, he is honest.
9. She studied well, so she secured first position.
   → She secured first position because she studied well.
10. Keep quiet, or the teacher will punish you.
    → If you do not keep quiet, the teacher will punish you.

iii . Complex → Simple

Rule:   Replace subordinate clauses with phrases (infinitive, participle, or prepositional phrase).

Examples 

1. Because he was ill, he stayed at home.
   → Being ill, he stayed at home.
2. Though he is poor, he is happy.
   → In spite of his poverty, he is happy.
3. When he saw the tiger, he ran away.
   → On seeing the tiger, he ran away.
4. As he worked hard, he succeeded.
   → By working hard, he succeeded.
5. If you work hard, you will succeed.
   → By working hard, you will succeed.
6. Because she was tired, she went to bed.
   → Being tired, she went to bed.
7. Though he was young, he was wise.
   → Despite his youth, he was wise.
8. As she completed the work, she left.
   → After completing the work, she left.
9. When I reached the station, the train had left.
   → On reaching the station, I found that the train had left.
10. Because he was honest, everyone trusted him.
    → Being honest, he was trusted by everyone.

2. Assertive to Interrogative

Rule:

• Change the statement into a question.
• Use Is/Are/Was/Were/Do/Does/Did.
• The meaning should remain the same.

Examples

1. He is honest.
   → Isn't he honest?
2. She is beautiful.
   → Isn't she beautiful?
3. Everybody likes flowers.
   → Who does not like flowers?
4. Everyone respects teachers.
   → Who does not respect teachers?
5. You can solve this problem.
   → Can't you solve this problem?
6. Nobody is perfect.
   → Who is perfect?
7. We should obey our parents.
   → Shouldn't we obey our parents?
8. The earth is round.
   → Isn't the earth round?
9. He always speaks the truth.
   → Doesn't he always speak the truth?
10. She sings well.
    → Doesn't she sing well?

3. Interrogative to Assertive

Rule:

• Remove the question mark.
• Change the question into a statement.
• Keep the meaning unchanged.

Examples

1. Who does not know Mahatma Gandhi?
   → Everyone knows Mahatma Gandhi.
2. Isn't she intelligent?
   → She is intelligent.
3. Can anyone deny this fact?
   → No one can deny this fact.
4. Who can stop time?
   → No one can stop time.
5. Isn't it a beautiful day?
   → It is a beautiful day.
6. Who does not love freedom?
   → Everyone loves freedom.
7. Is he not your friend?
   → He is your friend.
8. Can we forget our country?
   → We cannot forget our country.
9. Isn't honesty the best policy?
   → Honesty is the best policy.
10. Shall we not help the poor?
    → We should help the poor.

4. Assertive to Exclamatory

Rule:

• Begin with What or How.
• End with an exclamation mark (!).

Examples

1. It is a beautiful flower.
   → What a beautiful flower it is!
2. She is very kind.
   → How kind she is!
3. The weather is pleasant.
   → What pleasant weather!
4. He is very brave.
   → How brave he is!
5. The building is magnificent.
   → What a magnificent building!
6. It is a lovely garden.
   → What a lovely garden!
7. The baby is very cute.
   → How cute the baby is!
8. She dances beautifully.
   → How beautifully she dances!
9. It is an exciting match.
   → What an exciting match!
10. The stars are bright.
    → How bright the stars are!

5. Exclamatory to Assertive

Rule:

• Remove What or How.
• Change into a simple statement.

Examples

1. What a beautiful flower it is!
   → It is a very beautiful flower.
2. How brave he is!
   → He is very brave.
3. What a fine idea!
   → It is a very fine idea.
4. How lovely the garden is!
   → The garden is very lovely.
5. What a wonderful day!
   → It is a wonderful day.
6. How clever she is!
   → She is very clever.
7. What an honest man he is!
   → He is an honest man.
8. How fast the train runs!
   → The train runs very fast.
9. What a sweet voice she has!
   → She has a very sweet voice.
10. How beautiful the rainbow is!
    → The rainbow is very beautiful.

6. Active and Passive Voice – Sentence-wise Rules 

Rule 1: Simple Present Tense

Active Voice

Structure: Subject + V¹(s/es) + Object

Example:-  Ram writes a letter.

Passive Voice

Structure: Object + is/am/are + V³ + by + Subject

Example:  A letter is written by Ram.

Change into Passive Voice.

1. Ram writes a letter.
2. She teaches English.
3. They clean the classroom.
4. My mother cooks food.
5. The doctor treats patients.
6. We watch television.
7. The carpenter makes furniture.
8. The farmer grows wheat.
9. The police catch thieves.
10. The teacher checks notebooks.

Rule 2: Present Continuous Tense

Active Voice

Structure: Subject + is/am/are + V¹ + ing + Object

Example: She is reading a book.

Passive Voice

Structure: Object + is/am/are + being + V³ + by + Subject

Example: A book is being read by her.

She is reading a novel.

They are painting the wall.

We are watching a movie.

The cook is preparing dinner.

The boys are flying kites.

The teacher is explaining the lesson.

The gardener is watering the plants.

My father is driving the car.

The students are solving problems.

The workers are building a bridge.

Rule 3: Present Perfect Tense

Active Voice

Structure: Subject + has/have + V³ + Object

Example: They have completed the work.

Passive Voice

Structure: Object + has/have + been + V³ + by + Subject

Example:

• She has written a letter.
• They have completed the work.
• We have cleaned the room.
• The teacher has checked the notebooks.
• The police have arrested the thief.
• My mother has cooked dinner.
• He has solved the problem.
• The doctor has treated the patient.
• The students have finished the project.
• They have planted many trees.

Rule 4: Simple Past Tense

Active Voice

Structure: Subject + V² + Object

Example: The teacher praised the student.

Passive Voice

Structure: Object + was/were + V³ + by + Subject

Example: The student was praised by the teacher.

Ram wrote a letter.

She cleaned the room.

They played the match.

The teacher praised the students.

My father repaired the bike.

The police arrested the thief.

The doctor treated the patient.

We visited the museum.

The cook prepared dinner.

The farmer harvested the crop

Rule 5: Past Continuous Tense

Active Voice

Structure: Subject + was/were + V¹ + ing + Object

Example: He was painting the wall.

Passive Voice

Structure: Object + was/were + being + V³ + by + Subject

Example: The wall was being painted by him.

1.  She was writing a letter.
2. They were cleaning the room.
3. We were watching television.
4. The workers were building the road.
5. The teacher was teaching English.
6. My mother was cooking food.
7. The boys were playing cricket.
8. The gardener was watering the plants.
9. The police were questioning the suspect.
10. The carpenter was making a table.

Rule 6: Past Perfect Tense

Active Voice

Structure: Subject + had + V³ + Object

Example: She had finished the homework.

Passive Voice

Structure: Object + had + been + V³ + by + Subject

Example: The homework had been finished by her.

1.  She had written a letter.
2. They had completed the work.
3. We had cleaned the room.
4. The teacher had checked the notebooks.
5. The police had arrested the thief.
6. My father had repaired the bike.
7. The doctor had treated the patient.
8. The cook had prepared dinner.
9. The students had submitted the project.
10. They had planted many trees.

Rule 7: Simple Future Tense

Active Voice

Structure: Subject + will/shall + V¹ + Object

Example: They will build a bridge.

Passive Voice

Structure: Object + will/shall + be + V³ + by + Subject

Example: A bridge will be built by them.

1.  She will write a letter.
2. They will clean the room.
3. We will complete the work.
4. The teacher will check the notebooks.
5. The doctor will examine the patient.
6. My mother will cook dinner.
7. The police will arrest the thief.
8. The workers will build the bridge.
9. The students will solve the questions.
10. The gardener will water the plants.

Rule 8: Future Perfect Tense

Active Voice

Structure: Subject + will/shall + have + V³ + Object

Example: She will have completed the project.

Passive Voice

Structure: Object + will/shall + have been + V³ + by + Subject

Example: The project will have been completed by her.

1.  She will have written a letter.
2. They will have completed the work.
3. We will have cleaned the room.
4. The teacher will have checked the notebooks.
5. The doctor will have treated the patient.
6. My father will have repaired the bike.
7. The workers will have built the bridge.
8. The students will have finished the project.
9. They will have planted many trees.
10. The cook will have prepared dinner.

Rule 9: Modal Verbs

Active Voice

Structure: Subject + can/could/may/might/must/should + V¹ + Object

Example: You can solve the problem.

Passive Voice

Structure: Object + can/could/may/might/must/should + be + V³ + by + Subject

Example: The problem can be solved by you.

1.  You should obey the rules.
2. We must protect nature.
3. She can solve the problem.
4. They may invite us.
5. You ought to help the poor.
6. He could lift the box.
7. We must complete the work.
8. She should respect her parents.
9. They can finish the task.
10. You may use my pen.

Rule 10: Imperative Sentences

Active Voice

Structure: Verb + Object

Example: Open the door.

Passive Voice

Structure: Let + Object + be + V³

Example: Let the door be opened.

1.  Open the door.
2. Close the window.
3. Switch off the fan.
4. Write your name.
5. Read the chapter.
6. Finish the work.
7. Bring a glass of water.
8. Help the poor.
9. Keep the room clean.
10. Follow the rules.

Quick Revision Table

Tense	Active Structure	Passive Structure
Simple Present	S + V¹(s/es) + O	O + is/am/are + V³ + by + S
Present Continuous	S + is/am/are + V-ing + O	O + is/am/are + being + V³ + by + S
Present Perfect	S + has/have + V³ + O	O + has/have + been + V³ + by + S
Simple Past	S + V² + O	O + was/were + V³ + by + S
Past Continuous	S + was/were + V-ing + O	O + was/were + being + V³ + by + S
Past Perfect	S + had + V³ + O	O + had been + V³ + by + S
Simple Future	S + will/shall + V¹ + O	O + will/shall + be + V³ + by + S
Future Perfect	S + will/shall + have + V³ + O	O + will/shall + have been + V³ + by + S
Modals	S + Modal + V¹ + O	O + Modal + be + V³ + by + S
Imperative	Verb + O	Let + O + be + V³

8. Positive – Comparative – Superlative

Rule:

• Positive: as...as
• Comparative: -er / more...than
• Superlative: the -est / the most

Examples

1. Ram is as tall as Shyam.
   → Ram is not taller than Shyam.
   → Ram and Shyam are the tallest boys.
2. Gold is more precious than silver.
   → Silver is not as precious as gold.
   → Gold is the most precious metal.
3. Riya is the tallest girl.
   → Riya is taller than any other girl.
   → No other girl is as tall as Riya.
4. Iron is stronger than wood.
   → Wood is not as strong as iron.
   → Iron is the strongest metal (in this context).
5. This is the best book.
   → This book is better than any other book.
   → No other book is as good as this one.
6. Delhi is bigger than Jaipur.
   → Jaipur is not as big as Delhi.
   → Delhi is the biggest city (in this group).
7. Rahul is the smartest student.
   → Rahul is smarter than any other student.
   → No other student is as smart as Rahul.
8. The lion is stronger than the wolf.
   → The wolf is not as strong as the lion.
   → The lion is the strongest animal (in this comparison).
9. Health is better than wealth.
   → Wealth is not as good as health.
   → Health is the best wealth.
10. Mount Everest is the highest peak.
    → Mount Everest is higher than any other peak.
    → No other peak is as high as Mount Everest.