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Is it a complete sentence or a run-on?

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Is it a complete sentence or a run-on? — free printable Grammar and mechanics English worksheet

This worksheet helps Grade 3 students practice distinguishing complete sentences from run-on sentences. Teachers can use it to reinforce grammar and mechanics skills focused on sentence structure. It supports lessons on identifying sentence errors and improving writing clarity by correcting run-ons.

Learning objectives

  • Identify complete sentences and run-on sentences in written text
  • Differentiate between sentence fragments, complete sentences, and run-ons
  • Correct run-on sentences by applying proper punctuation and conjunctions

How to use this worksheet

  1. Select “Sign in / Sign up to download”, then sign in with Google or email to get the PDF from KiwiBee Printables.
  2. Print at home or in class for Grade 3; it's no-prep, with no extra materials needed.
  3. Use the included answer key to mark it in seconds.

Good for

ClassworkHomeworkWarm-upCentersSmall groups

Answer Key

Answer key for Is it a complete sentence or a run-on? — free printable English & Reading worksheet

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