Subject and Predicate Worksheet for 10-Year-Olds (Grade 5) — Identify Subjects, Predicates & Complete/Incomplete Sentences

Free worksheet covering English Language Arts, Grammar for age 10 students. Created with Learning Corner's AI-powered tools.

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Instructions

Welcome, Sentence Detective! Your mission is to analyze sentences to ensure they are complete and follow correct structure. Read the instructions carefully for each section.

  1. Review the definitions for Subject and Predicate before starting Section A.
  2. In Section A, underline the simple subject and circle the simple predicate (verb) in each sentence.
  3. In Section B, analyze the phrases and determine if they are complete sentences or fragments, then sort them into the table.
  4. Complete the writing tasks in Sections C and D.

Section A: The Sentence Blueprint

The Subject is the main noun or pronoun the sentence is about (who or what performs the action).

The Predicate is the main verb or verb phrase that tells what the subject is doing or what is being done to it.

Example: The hungry dog chased the squeaky toy.
Task: Underline the Subject. Circle the Predicate.

  1. My older brother finished the difficult puzzle.

  2. The shining spaceship traveled through the vast nebula.

  3. Carefully, the chef stirred the spicy chili.

  4. Three small mice quickly ran under the refrigerator.

  5. Mr. Harrison teaches history at the high school.

  6. Sarah and Leo built a giant fort in the backyard.

  7. Thunder boomed loudly after the lightning flash.

  8. The clever fox slipped away unnoticed.

Section B: Complete Thought or Fragment?

Complete sentences must have a subject and a predicate, and express a complete thought.

A Fragment is an incomplete sentence; it might be missing a subject, a predicate, or fail to express a complete thought.

Analyze the 10 phrases below and check the correct box in the table.

Phrase Complete Sentence Fragment
Example: Walked to the store. X
1. Because the bell rang.
2. The entire team celebrated the win.
3. Jumped over the small fence.
4. My computer crashed unexpectedly.
5. While eating a large sandwich.
6. That bright yellow jacket.
7. The enormous whale surfaced near the boat.
8. The movie finally started late.
9. Running down the long path.
10. The water felt very cold.

Section C: Fixing Fragments

The fragments below are missing a key part (either the subject or the predicate). Rewrite each fragment as a complete sentence by adding the necessary element.

Example: Was flying high above the city. Rewrite: The small drone was flying high above the city.

  1. Hidden under the stack of blankets.
  1. The mysterious package left on the porch.
  1. After the sudden storm cleared.
  1. Smiled at the camera. (Needs a Subject)
  1. Waiting for the bus.
  1. The friendly cashier with the green hat.

Section D: Building New Sentences (Real-World Application)

Write 8 original, complete sentences detailing the steps needed to plan a small event, like a picnic or a video game tournament. Ensure every sentence has a clear subject and predicate.

Challenge Mission (Optional)

Create one complete sentence that includes both a Compound Subject (more than one subject joined by 'and' or 'or') AND a Compound Predicate (more than one verb joined by 'and' or 'or').

Challenge Sentence:

Answer Key

Section A: The Sentence Blueprint

Note: Underline indicates Subject (S). Circle indicates Predicate (P).

  1. My older brother finished the difficult puzzle.

  2. The shining spaceship traveled through the vast nebula.

  3. Carefully, the chef stirred the spicy chili.

  4. Three small mice quickly ran under the refrigerator.

  5. Mr. Harrison teaches history at the high school.

  6. Sarah and Leo built a giant fort in the backyard.

  7. Thunder boomed loudly after the lightning flash.

  8. The clever fox slipped away unnoticed.

Section B: Complete Thought or Fragment?

Phrase Complete Sentence Fragment
1. Because the bell rang. X
2. The entire team celebrated the win. X
3. Jumped over the small fence. X
4. My computer crashed unexpectedly. X
5. While eating a large sandwich. X
6. That bright yellow jacket. X
7. The enormous whale surfaced near the boat. X
8. The movie finally started late. X
9. Running down the long path. X
10. The water felt very cold. X

Section C: Fixing Fragments

(Answers will vary, but must include the missing S or P.)

  1. Hidden under the stack of blankets. -> The lost remote was hidden under the stack of blankets.

  2. The mysterious package left on the porch. -> The mysterious package left on the porch contained a new book.

  3. After the sudden storm cleared. -> We went outside after the sudden storm cleared.

  4. Smiled at the camera. -> My little sister smiled at the camera.

  5. Waiting for the bus. -> The students were waiting for the bus.

  6. The friendly cashier with the green hat. -> The friendly cashier with the green hat helped the customer.

Section D & Challenge Mission

(Answers will vary but must be complete sentences meeting the structural criteria.)

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