Rewriting Subject Predicate Sentences Worksheet

Every sentence has two working parts: a complete subject that names who or what the sentence is about, and a complete predicate that tells what that subject does. Third graders who can find those two parts can also change them, and that is exactly what this rewriting subject predicate sentences worksheet asks them to do. Instead of only underlining a subject or circling a predicate, students swap one part for a brand-new one and write the whole sentence again, so the rule stops being a label and starts being a tool they use.

The sheet opens with a worked example that models the move from start to finish, then gives four sentences. In each one, either the complete subject or the complete predicate is underlined, and a green box holds the new part that replaces it. Students read the sentence, decide which half is underlined, and rewrite it on the two lines below with the new part in place, keeping the capital letter at the beginning and the period at the end. Because the new part is supplied, this 3rd grade sentences worksheet keeps the focus on sentence structure rather than on inventing ideas, and every item has one correct answer you can check at a glance.

What’s Included

• 1 print-ready PDF worksheet
• Answer key
• 1 worked example and 4 sentence-rewriting items, two replacing the subject and two replacing the predicate

Three things make this rewriting subject predicate sentences worksheet work in a real classroom. First, rewriting the whole sentence forces students to keep the other half intact, which is the clearest proof that they know where the subject ends and the predicate begins. Second, mixing subject swaps and predicate swaps means students cannot answer on autopilot; they have to look at the underline every single time. Third, copying the sentence out in full gives quiet practice with capital letters, spacing and end punctuation while the grammar lesson is still in view.

Teachers and parents can stretch the activity in a few easy ways. Cut apart the green boxes and let partners trade new parts, then read the funniest results aloud. Write a subject on one colour of index card and a predicate on another, shuffle both piles, and build silly sentences that still follow the rule. Ask students to circle the subject and underline the predicate in a favourite picture book, or challenge them to rewrite one sentence from their own journal with a longer, more interesting predicate. A few minutes of this each day builds sentences that are clear, complete and fun to read.

Related Resources

• Complete Sentences with Subject and Predicate Activity
• Rewriting Compound Subjects Worksheet
• Identify Subject Worksheet
• Subject and Predicate Song (Have Fun Teaching)