Think Before You Act: Using Conditional Words (If, Unless – Intro) – Class 4 

This Grade 4 worksheet on Using Conditional Words (if, unless – intro) helps students understand how conditions affect outcomes in sentences. Through structured grammar practice such as fill-in-the-blanks, multiple-choice questions, sentence rewriting using if and unless, and paragraph completion, learners build clarity in expressing cause-and-effect relationships. 

The worksheet begins with choosing between if and unless based on meaning. Students then identify correct sentence usage, rewrite sentences without changing meaning, and finally apply their understanding in a contextual paragraph about exam preparation. This step-by-step progression strengthens logical thinking, conjunction usage, and sentence construction skills. 

Why Learning Conditional Words Matters in Grammar? 

1. It helps students express cause and effect clearly. 
2. It builds understanding of positive and negative conditions. 
3. It improves sentence clarity in writing tasks. 
4. It strengthens logical reasoning in grammar usage. 

What’s Inside This Worksheet? 

🧠 Exercise 1 – Fill in the Blanks 
Students choose between if and unless to complete each sentence correctly. 

📋 Exercise 2 – Multiple Choice Questions 
Students select the sentence that correctly uses if or unless. 

✏️ Exercise 3 – Rewrite Using “if” 
Students rewrite sentences containing unless using if without changing meaning. 

📝 Exercise 4 – Rewrite Using “unless” 
Students rewrite sentences containing if into unless form correctly. 

🖊 Exercise 5 – Paragraph Completion 
Students fill in the blanks in a short paragraph using if or unless. 

✅ Answer Key (For Parents & Educators) 

Exercise No. 1 – Fill in the Blanks 

1. unless 
2. if 
3. unless 
4. if 
5. if 
6. unless 
7. unless 
8. if 
9. if 
10. if 

Exercise No. 2 – Multiple Choice Answers 

1. a 
2. a 
3. b 
4. a 
5. b 
6. b 
7. a 
8. b 
9. b 
10. a 

Exercise No. 3 – Rewrite Using “if” 

1. If you do not finish your homework, you cannot watch television. 
2. If she does not study hard, she will not score well. 
3. If we do not leave early, we will miss the bus. 
4. If it does not rain, the match will continue. 
5. If he does not apologise, I will not forgive him. 
6. If you do not water the plants, they will dry up. 
7. If they do not practise, they will not win the game. 
8. If she does not wake up early, she will be late. 
9. If you do not lock the door, it will remain open. 
10. If he does not try again, he will not succeed. 

Exercise No. 4 – Rewrite Using “unless” 

1. Unless you wear a helmet, you may get hurt. 
2. Unless she calls me, I will be worried. 
3. Unless we hurry, we will miss the show. 
4. Unless he practises, he will not improve. 
5. Unless it rains, we will go for a picnic. 
6. Unless you follow the rules, you cannot participate. 
7. Unless she eats well, she will feel weak. 
8. Unless they leave now, they will be late. 
9. Unless you clean your room, it will remain messy. 
10. Unless he listens carefully, he will not understand. 

Exercise No. 5 – Paragraph Completion 

1. if 
2. unless 
3. if 
4. if 
5. unless 

Help your child confidently use conditional words like if and unless to express clear and logical ideas in writing. 

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