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Grade 4 Fragments & Run-On Sentences Worksheet with Answers

Grade 4 (US) · Year 5 (UK) · Class 4 (India) · English

Unit 1: Grammar & UsageComplete SentencesCCSS L.4.1f

Spotting incomplete sentences and run-ons, and fixing them. This free upper elementary worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Fragments & Run-On Sentences

Grade 4 · English

Score___ / 12

Name

Class

Date

Learning goal: Complete Sentences · CCSS L.4.1f

Directions: This worksheet has 2 parts. Read the instructions at the start of each part.

Example

Fragment, run-on or complete sentence? 'The cat slept.'

Answer: complete sentence

RememberSentence types

Simpleone complete ideaThe dog barked.Compoundtwo ideas + FANBOYSfor, and, nor, but, or, yet, soComplexidea + dependent clausebecause, when, although…Fragment ✗missing a subject or verbRan to the park.Run-on ✗two ideas, no joiningI ran I fell.Clausehas a subject and a verbphrase: no subject + verb
Part A

Fragment or Run-on or Complete sentence? Tick one box for each.

FragmentRun-onComplete sentence
1Although it was late, we kept reading.
2It rained all day we stayed inside.
3She smiled, she waved, she left.
4After the game ended.
5Because I was late.
6Running down the hill with my friends.
7We went to the beach.
8Ran to the store.
9The tall boy in the red hat.
Part B

Answer each question. Use full sentences where you can.

  1. 10

    Fix the run-on: 'The movie was long we enjoyed it.'

  2. 11

    Fix the run-on: 'I was hungry I ate a sandwich.'

  3. 12

    Fix the fragment: 'Because the bus was late.'

★ Challenge corner for fast finishers

What can you catch but not throw?

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/english/4/fragments_runons

Answer key (click to show)
  1. 1.complete sentence
  2. 2.run-on
  3. 3.run-on (comma splice)
  4. 4.fragment
  5. 5.fragment
  6. 6.fragment
  7. 7.complete sentence
  8. 8.fragment
  9. 9.fragment
  10. 10.The movie was long, but we enjoyed it.
  11. 11.I was hungry, so I ate a sandwich.
  12. 12.We missed class because the bus was late. (any complete sentence)
  13. ★a cold (challenge corner)

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How to use this worksheet

  • Use it as a 10–15 minute warm-up or homework task rather than a long drill.
  • Ask students to show their working so you can see where a mistake started, not just that it happened.
  • Mark it with the answer key together, then print a fresh version of the same topic to practise the questions they missed.

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