

This Grade 4 grammar worksheet helps students understand and correct run-on sentences so they can write clearer and more structured ideas. A run-on sentence occurs when two or more complete sentences are joined together incorrectly without proper punctuation or conjunctions. Through engaging grammar activities, students learn how to identify these errors and rewrite them correctly.
The worksheet introduces learners to sentence structure through exercises such as identifying run-on sentences, selecting the correctly written option from multiple choices, rewriting run-on sentences with proper punctuation or joining words, correcting run-ons in a paragraph, and creating their own correctly punctuated sentences. These activities build confidence in writing while strengthening grammar fundamentals.
By practicing with this worksheet, Grade 4 students improve their understanding of punctuation, sentence separation, and the use of conjunctions like “and”, “so”, or “but”. This helps them develop clearer writing skills and communicate ideas more effectively in school assignments and everyday communication.
Run-on sentences make writing confusing because two complete thoughts are joined incorrectly. Learning to correct run-on sentences helps students express ideas clearly. For Grade 4 learners, this topic is important because:
1. A run-on sentence joins two complete ideas without proper punctuation.
2. Students learn to fix them using full stops, commas with conjunctions, or sentence separation.
3. Correct punctuation improves readability and clarity.
4. Understanding sentence boundaries helps students write structured paragraphs and stories.
This worksheet includes five grammar-rich activities that build understanding of run-on sentences:
🧠 Exercise 1 – Identify Run-on Sentences
Students read each sentence carefully and underline the sentences that contain run-on errors. This helps learners recognize where two independent ideas are incorrectly joined.
✏️ Exercise 2 – Multiple Choice: Choose the Correct Sentence
Students select the option that correctly fixes the run-on sentence using proper punctuation or sentence separation.
📋 Exercise 3 – Rewrite the Run-on Sentence
Students rewrite run-on sentences by adding punctuation marks or conjunctions such as “and”, “so”, or “but” to create correct sentences.
📝 Exercise 4 – Paragraph Correction
Students read a paragraph containing several run-on sentences and rewrite it by correcting the punctuation and separating ideas properly.
✍️ Exercise 5 – Sentence Writing
Students write three short sentences, ensuring each begins with a capital letter and ends with a full stop.
Exercise 1 – Run-on Sentences
1–10: All sentences are run-on sentences.
Exercise 2 – Choose the Correct Sentence
1. b) I went home. I ate food.
2. a) She was tired so she slept.
3. b) Raj played cricket. He scored a goal.
4. c) Asha danced. She was happy.
5. c) Vikram studied hard. He passed the test.
6. b) Manav ran fast. He missed the bus.
7. c) Sia cooked. She set the table.
8. c) Anika read a book. She shared it.
9. c) Dev cleaned the room. He helped his sister.
10. c) Shruti wrote a letter. She mailed it.
Exercise 3 – Corrected Run-on Sentences (Sample Answers)
1. I woke up early, and I went for a walk.
2. The teacher entered the class, and the students became quiet.
3. My sister likes painting, and she draws every evening.
4. We finished our lunch, and we went outside to play.
5. The dog barked loudly, and the cat ran away.
6. I opened the book, and I started reading the story.
7. My friend called me, so I answered the phone quickly.
8. The rain stopped, and the sun came out again.
9. We visited the zoo, and we saw many animals.
10. The game ended, and our team celebrated happily.
Exercise 4 – Corrected Paragraph (Sample)
Yesterday was a busy day. I woke up early and got ready for school. I packed my school bag and ate my breakfast quickly. My brother called me, and we walked to the bus stop together. The bus arrived, and we got on and sat near the window. When we reached school, the bell rang and the teacher started the lesson. During recess, we played football and laughed and talked with our friends.
Exercise 5 – Sample Sentences
1. I like to read storybooks.
2. My friends and I play in the park.
3. I finish my homework before dinner.
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A run-on sentence joins two or more ideas without correct punctuation or connectors.
Punctuation marks help readers understand where one thought ends and another begins.
They teach learners to use periods, commas, and conjunctions correctly in writing.