I. Simple Sentence
A sentence which has only one finite verb is a simple sentence. It may have non-finite verbs, if required.
e.g.: She is walking.
He has written a letter to help his son.
II. Complex sentence
A complex sentence consists of a principal/ main clause with one or more sub-ordinate clauses. It means that a complex sentence has more than one finite verb. Sub-ordinate clauses are joined by sub-ordinating conjunctions.
e.g.: I know that he is a good man.
When you do this work, I shall help you with money.
III. Compound sentence
A compound sentence consists of two or more principal clauses. These clauses are joined by co-ordinating conjunctions such as and, but, so, therefore, otherwise, or, else, nor, while, for, whereas, still, yet, nevertheless, however, as well as, all the same, indeed, but.
e.g.: Speak or you will die.
She is rich but she is not vain.
My brother came and he handed over money to me.
It was dark, however, we went out.
It is cold indeed, but I will go out.
She is intelligent while her sister is dull.
I. Combine the following sentences into simple sentences.
1. The student admitted. He was absent.
A: The student admitted his absence.
2. I am not aware. what is he?
A: I am not aware of his profession.
3. She is sure. She will secure high marks.
A: She is sure of securing high marks.
4. I expect. He is honest.
A: I expect him to be honest.
5. It is certain. She has two sons.
A: She has certainly two sons.
6. It is believed. Netaji died in air crash.
A: Netaji is believed to have died in air crash.
7. It is beyond doubt. She will recover from illness.
A: Undoubtedly, she will recover from illness.
8. He visited the Taj. It is an artistic building.
A: He visited the Taj, an artistic building
9. Rathore is our captain, He scored five runs.
A: Rathore our captain, Scored five runs.
10. I will board a train. It connects Udaipur.
A: I will board a train connecting Udaipur.
11. She has arrived earlier. Do you know the reason?
A: Do you know the reason of her arrival earlier?
12. Kabir was a famous poet. He was a weaver.
A: Kabir, a famous poet, was a weaver.
13. We came across a soldier. He was in trouble.
A: We came across a soldier in trouble.
14. Mr. Verma is our teacher. Everybody loves him.
A: Mr. Verma, our teacher, is loved by everybody.
15. She is very poor. She can not carry on her study.
A: She is too poor to carry on her study.
16. He heard the news. He fainted.
A: On hearing the news he fainted.
17. He is working hard. His aim is to join army.
A: He is working hard. to join army.
18. Work hard. You will pass.
A: You will pass by working hard.
19. He told a lie. He was not afraid of it.
A: He was not afraid of telling a lie.
20. She was clever. I could notice it.
A: I could notice her cleverness.
II. combine the simple sentences into compound sentences.
1. He is Intelligent. He is careless.
A: He is intelligent but careless.
2. Walk fast. You will catch bus.
A: Walk fast and you will catch bus.
3. Wait here. He will not meet you.
A: Wait here otherwise, he will not meet you.
4. He can succeed. He will not work hard.
A: He can succeed but he will not work hard.
5. He came late. He would have enjoyed music.
A: He came late otherwise, he would have enjoyed music.
6. Morning walk is a good exercise. Everybody should walk.
A: Morning walk is a good exercise, therefore everybody should walk.
7. The bus was slow. He reached late.
A: The bus was slow so he reached late
8. You are a liar. Your brother is a liar.
A: You are a liar and so is your brother.
9. Stand outside. come in.
A: Stand outside or come in.
10. She came. She consoled me.
A: She came and consoled me.
11. I can not go out. It is very cold outside.
A: It is very cold outside, therefore I cannot go.
12. He is a fool. He is dishonest also.
A: Besides being dishonest, he is a fool.
13. Richa can not sing. Esha cannot sing.
A: Richa can not sing not can Esha.
14. He took bath. He put on new clothes.
A: He took bath and put on new clothes.
15. Write to father. Otherwise I would do so.
A: Either you write or I must write to father.
16. He is working hard. He wants to pass.
A: He wants to pass and so he is working hard.
17. The bus was slow. He reached late.
A: The bus was slow so he reached late.
18. I went to indore. I spent a few days there.
A: I went to indore and there I spent a few days.
19. Say one word. I shall kill you.
A: One word more and I shall kill you.
20. You play piano. Your brother plays piano.
A: You play piano and so your brother.
III. Change the following simple sentences into complex sentences
1. Truth is eternal.
A: What is true is eternal.
2. His fall is certain.
A: That he will fall is certain.
3. She jumped at my offer
A: She jumped at what I offered her.
4. Pay need to my instructions.
A: Pay need to what I have instructed.
5. Her remarks about my failure were disgusting
A: Her remarks that I had failed were disgusting
6. This is my native village.
A: This is the village where I was born.
7. His offence is unpardonable.
A: The offence which he committed is not pardonable
8. The pen given by him is very cheap.
A: The pen which is given by him is very cheap
9. A tired man cannot do work well.
A: A man who is tired, cannot work well.
10. He invented a machine for stitching.
A: He invented a machine which is used for stitching.
IV. Change the following into other forms of degree as directed
1. Mango is sweeter than orange (change into P.D.)
A: Orange is not so sweet as Mango.
2. The lotus is lovelier than the rose (change into P.D.)
A: The rose is not so lovely as the lotus
3. Ramesh is the tallest boy in the class (change into P.D. & C.D.)
A: Ramesh is taller than any other boy in the class. (C.D.)
No other boy in the class is as tall as Ramesh (P.D.)
4. America is the richest country (change into P.D. & C.D.)
A: America is richer than any other country (C.D.)
No other country is so rich as America (P.D.)
5. Hamlet is one of the best plays of shakespeare (S.D)
A: Hamlet is better than most other plays of Shakespeare (C.D)
Very few plays of Shakespeare are as good as Hamlet (P.D.)
6. Krishna is stronger than Ramesh (change to P.D.)
A: Ramesh is not so strong as Krishna.
7. Ashok is wiser than suresh (change to P.D.)
A: Suresh is not so wise as Ashok
8. He is Braver than me (change to P.D.)
A: I am not so brave as him
9. Iron is not as strong as steel (change to C.D.)
A: Steel is stronger than Iron
10. you can walk faster than me (change to P.D)
A: I can walk as fast as you.
11. Lakshman is not taller than kumar (change to P.D)
A: Kumar is as tall as Lakshman
12. The fox is not wiser than the dog (change to P.D)
A: The dog is as wise as the Fox
13. The Elephant is the biggest of all animals (change to C.D & P.D)
A: No other animal is as big as the Elephant (P.D)
Elephant is bigger than any other animals (C.D)
14. Mount Everest is the highest peak in the world (change to C.D & P.D)
A: No other peak in the world is so high as the Mount Everest (P.D)
Mount Everest is higher than any other places in the world (C.D)
15. Akbar was one of the greatest kings (change to C.D & P.D)
A: No other king was so great as Akbar (P.D)
Akbar was greater than any other king (C.D)
16. Varanasi is not the oldest of all the cities in U.P (change into C.D & P.D)
A: Varanasi is not older than some other cities in U.P.
Some other cities in U.P are at least as old as varanasi.
17. Rustam was as powerful as his brother (change into C.D)
A: Rustam's brother was not more powerful than Rustam.
18. Shivaji was one of the greatest warriors of India (change into C.D)
A: Shivaji was greater than most of the warriors in India.
19. Eagle flies higher than any other bird (change into P.D & S.D)
A: No other bird flies as high as eagle
Eagle flies highest of all the birds.
20. It is better to lend than borrow (change into P.D)
A: Borrowing is not as good as lending
21. Very few writers in India are as famous as R.K. Narayan (change into C.D & S.D)
A: R.K. Narayan is more famous than most of the Indian writers.
R.K. Narayan is one of the most famous Indian writers.
V. Change the following Simple Sentences into Compound Sentences.
1. I Shall leave the room with your Permission.
A: You Permit me and I Shall leave the room.
2. For all his knowledge he is a fool.
A: He is a man of knowledge but he is a fool.
3. He was punished on account of his fault
A: He committed a fault so he was punished.
4. Despite his wealth, he is not respected.
A: He is wealthy but he is not respected
5. He worked hard to secure high percentage of marks.
A: He worked hard and secured high percentage of marks
6. On his return we asked him many questions.
A: He returned and we asked him many questions.
7. In addition to mathematics he also teaches Hindi.
A: He teaches mathematics and Hindi also.
8. I am thankful to you for sending me money.
A: You sent me money so I am thankful to you.
9. Besides being rich he is learned also.
A: He is not only rich but also learned.
10. He must work hard to secure high percentage of marks.
A: He must work hard and will secure high percentage of marks.
VI. Change the following Complex Sentences into Compound Sentences.
1. Although she is Sick, She will Come.
A: She is sick but She will Come.
2. If you come by car, we will take you to temple.
A: Come by car and we will take you to temple.
3. As it was cold, we did not go out
A: It was cold so we did not go out.
4. When the thief was found out, he was arrested.
A: The thief was found out and he arrested.
5. When she arrived, everybody welcomed her.
A: She arrived and every body welcomed her.
6. If you do not stop smoking, you will suffer from lung disease.
A: You must stop smoking otherwise you will suffer from lung disease.
7. I Shall not go, unless I am invited.
A: I am not invited so I shall not go.
8. If you listen seriously, I will tell you all.
A: Listen seriously and I will tell you all.
9. I am glad that he has recovered from illness.
A: He has recovered from illness so I am glad.
10. I have found the pen that I had lost.
A: I had lost the pen but I have found it.
11. He had a dog that was very faithful.
A: He had a dog and that was very faithful.
12. Unlucky as he is, he is never disappointed
A: He is Unlucky but he is never disappointed.
13. Do this lest you should suffer
A: Do this otherwise you will suffer
14. How ever, Intelligent he may be, he cannot succeed.
A: He is very Intelligent but he cannot succeed.
15. If he had not given me money, I would not have started business
A: He gave me money and I Started business.
16. If he were at home, I would meet him.
A: He is not at home otherwise I would meet him
17. If he is at home, I shall give him money.
A: He is not at home otherwise I would give money.
18. In case he dies, his son will inherit his property
A: He will die and his son will inherit his property.
19. He must work hard so that he may pass.
A: He must work hard and he will pass.
20. He could afford to spend something but he spent more.
A: He spent more than he could afford