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Is it a complete sentence or a run-on?
Free printable Grade 2 English worksheet for "Is it a complete sentence or a run-on?" — practice sentences, fragments, and run-ons (grammar and mechanics). No-prep, print or assign online.
This worksheet helps second-grade students practice distinguishing between complete sentences and run-on sentences. Teachers can use it to reinforce grammar skills related to sentence structure and punctuation. It supports lessons on sentence fragments, run-ons, and proper sentence formation for early writers.
Learning objectives
- Identify complete sentences and run-on sentences in given examples
- Differentiate between sentence fragments, complete sentences, and run-on sentences
- Correctly categorize sentences to improve grammar and writing clarity
Answer Key

How to use this worksheet
- Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
- Print at home or in class for Grade 2; it's no-prep, with no extra materials needed.
- Use the included answer key to mark it in seconds.
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