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Compound Sentences Worksheet

Free printable worksheet with answer key. Practice joining two simple sentences into a compound sentence using and, but, or. Perfect for Grades 2–4.

📄 Free PDF✅ Answer Key🖨️ Print-Ready
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Preview: Compound Sentences

2 pages
GrammarGrades 2–4Free Printable
Name: __________________    Date: __________

🔗 Compound Sentences — Joining Two Ideas

🔗 FANBOYS Conjunctions

for
reason
and
addition
nor
negative
but
contrast
or
choice
yet
contrast
so
result

📖 Grammar Guide

A compound sentence joins two complete sentences using a comma + conjunction. The 7 conjunctions spell FANBOYS: For, And, Nor, But, Or, Yet, So. Each side of the conjunction must be a complete sentence with its own subject and predicate.

✏️ Choose the Conjunction

1. I like cats I like dogs.  and / but
2. I love dogs I am allergic.  so / but

🔗 Build a Compound Sentence

3. The sun came out. We went outside. → The sun came out, we went outside.
4. She was tired. She finished her homework. → She was tired, she finished her homework.

🔍 Compound or Simple?

5. Tom likes pizza and ice cream. Compound / Simple
6. She ran, and he followed. Compound / Simple

✍️ Write Your Own

7. Use "but":
8. Use "so":
✅ Answers: 1.and 2.but 3.and/so 4.but/yet 5.Simple 6.Compound
🔗 FANBOYS cards 📖 Grammar guide ✏️ Choose conjunction 🔗 Build compound 🔍 Compound or Simple? ✍️ Write your own ✅ Answer key 🖨️ A4 print-ready

📌 Also try: Writing Sentences — put grammar into practice

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About This Compound Sentences Worksheet – Joining Sentences

This free printable compound sentences worksheet worksheet reinforces grammar and word knowledge through application, not memorization. Students identify parts of speech, correct sentences, and apply rules in their own writing.

What Students Will Learn

Students learn how words work together in sentences — parts of speech, verb tenses, agreement, and sentence structure. Practicing these rules in context, rather than in isolation, helps students carry correct grammar into their own writing.

How Teachers Can Use This Worksheet

How Parents and Homeschoolers Can Use This Worksheet

Notice grammar in real life — read together and point out interesting sentences. Play word games that name parts of speech. When your child writes something, praise correct usage and gently model fixes for errors rather than over-correcting.

Skills Covered

parts of speech · sentence structure · punctuation · verb tenses · writing mechanics

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