Free printable practice
Subjects Predicates Practice Activities
Printable Grade 4 grammar worksheets that help students identify complete subjects, complete predicates, and how both parts build clear sentences.
Practice that builds confidence
What children learn
These Grade 4 subjects and predicates practice activities help children see that every complete sentence has someone or something it is about and something being said about it. Students practise finding the complete subject, complete predicate, simple subject, and main verb in age-appropriate sentences.
The printable worksheets include sentence sorting, underlining, labeling, matching, and sentence-building tasks. They support the Grammar and Writing > Grade 4 > Sentences focus by helping students move from recognizing sentence parts to writing clearer, more complete sentences of their own.
In this collection, students work with the two main parts of a sentence. The subject tells who or what the sentence is about, while the predicate tells what the subject does, has, is, or feels. Grade 4 learners also begin noticing the difference between a complete subject, such as “The tall oak tree,” and a simple subject, such as “tree.” They also look inside the predicate for the main verb.
How the practice progresses
Activities begin with clear sentences where the subject and predicate are easy to separate. Then students meet longer sentences with adjectives, phrases, compound subjects, or compound predicates. A worksheet might ask them to underline “My little brother” as the subject and “built a fort in the living room” as the predicate. Later tasks invite children to combine parts or write a missing predicate that makes sense.
A simple parent routine
At home, choose one sentence from a book, homework page, or conversation. Ask, “Who or what is this sentence about?” Then ask, “What is being said about that person or thing?” Have your child draw a slash between the subject and predicate. Keep the talk short and specific: “The dog / barked at the mail carrier.” This quick routine builds the habit of checking for complete thoughts.
Classroom uses for teachers
Teachers can use these printables for sentence warm-ups, grammar centers, small-group reteaching, or independent practice after a mini lesson. They also work well before paragraph writing, because students who understand sentence parts are better prepared to revise fragments and expand simple sentences.
Common errors to watch for
Students may circle only the first word of a complete subject or mistake a describing phrase for the whole predicate. Others may label a sentence opener, such as “After school,” as the subject. Encourage them to find the main noun and main verb first, then expand outward to include the related words.
Free printable PDF download
Use this grade 4 subjects and predicates worksheet page to preview the activity, print it, or download it as a PDF for quick practice. It works well for homework, homeschool lessons, tutoring, morning work, revision, and classroom centers.
Answers and answer key support
After the child completes the worksheet independently, parents and teachers can use the answer support or answer key information to check the work, review mistakes, and choose the next practice step.
Why iBloom worksheets help
The worksheets give repeated, focused practice without mixing in too many grammar skills at once. Children see subjects and predicates in different sentence patterns, mark them visually, and then apply the idea in their own writing. A child-friendly strategy is: find the verb, ask “who or what did it?”, then split the sentence into its two big parts.
Helpful answers
Frequently asked questions
What is the main skill in these Grade 4 worksheets?
Students practise identifying the subject and predicate of a sentence, including complete subjects, complete predicates, simple subjects, and main verbs.
How can I explain subject and predicate to a fourth grader?
Say that the subject tells who or what the sentence is about, and the predicate tells what that subject does, has, is, or feels. For example, in “The kitten slept on the chair,” “The kitten” is the subject and “slept on the chair” is the predicate.
Do these worksheets include complete subjects and complete predicates?
Yes. The activities help students move beyond one-word answers by identifying the full subject or predicate, including describing words and related phrases.
Can these printables help with sentence fragments?
Yes. When students learn to check whether a sentence has both a subject and a predicate, they become better at spotting fragments and fixing incomplete thoughts.
How should teachers use these worksheets in class?
They can be used after a mini lesson, in grammar centers, for morning work, in small groups, or as review before students revise their own sentences.
Is this grade 4 subjects and predicates worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this grade 4 subjects and predicates worksheet as a PDF?
Yes. Use the worksheet download option to save a printable PDF, or print the worksheet directly from the page.
Does this grade 4 subjects and predicates worksheet include answers or an answer key?
When the activity has fixed answers, iBloom includes answer support so parents and teachers can check the completed worksheet.