Free Compound Sentences Worksheets

A one-page lesson on joining two sentences with a comma and a joining word, then guided and independent practice with and, but, or and so.

Compound Sentences: How It Works printable preview

Compound Sentences: How It Works

Lesson

A one-page explanation of joining two complete sentences with a comma and and, but, or or so, with examples, three steps to follow and a "watch out" box.

Download PDF
Compound Sentences: Guided Practice printable preview

Compound Sentences: Guided Practice

Guided

Short sections that build one skill at a time, starting with the easiest. Answer key on page 2.

Download PDF
Compound Sentences: Practice printable preview

Compound Sentences: Practice

Practice

Independent practice that mixes the skills and ends with the student writing. Answer key on page 2.

Download PDF

About these compound sentences worksheets

A compound sentence joins two complete sentences with a comma and a joining word. The lesson focuses on the four joining words students use most (and, but, or, so) and lists all seven coordinating conjunctions.

Students circle joining words, choose the one that makes sense, decide whether a sentence is compound, and then join pairs of sentences themselves. The "watch out" box covers the comma splice.

Frequently Asked Questions

What grade are these compound sentences worksheets for?
Third through fifth grade. A student should already know what a subject and a predicate are.
Where does the comma go in a compound sentence?
At the end of the first sentence, before the joining word: "Gus barked, but Dot slept."
What does FANBOYS stand for?
For, and, nor, but, or, yet, so: the seven coordinating conjunctions that can join two sentences.