Free printable practice
Write Subjects Predicates Practice Activities
Grade 4 worksheets help students write complete subjects and predicates to build clearer, more complete sentences.
Practice that builds confidence
Understanding sentence parts
These Grade 4 grammar and writing worksheets help children practise writing the two essential parts of a sentence: the subject, which tells who or what the sentence is about, and the predicate, which tells what the subject does or is.
The printable activities guide students to complete unfinished sentences, create matching subjects and predicates, and revise sentence fragments into complete thoughts. Children build stronger sentence sense while using grade-appropriate grammar vocabulary.
A complete sentence needs both a subject and a predicate. In Grade 4, students move beyond spotting a simple noun and verb; they learn that a subject can include describing words, and a predicate can include a verb plus details. For example, “The sleepy dog” is a complete subject, while “curled up beside the couch” is a complete predicate.

How the practice progresses
These worksheets begin with clear sentence halves so children can see the job of each part. Then students write a missing subject or predicate that makes sense, agrees grammatically, and forms a complete thought. Later items encourage more original writing, such as adding an interesting predicate to “The science team” or writing a subject for “raced across the playground.”
Parent routine for extra practice
At home, choose one sentence from a book or conversation. Ask, “Who or what is this about?” and underline the subject. Then ask, “What is said about it?” and circle the predicate. After that, invite your child to swap one part: keep the predicate and write a new subject, or keep the subject and write a new predicate. This short oral routine makes the worksheet skill feel natural.

Classroom uses for teachers
Teachers can use the pages during a sentences unit, as independent grammar practice, in literacy centers, or for quick review before paragraph writing. The format also works well for small groups: one student writes a subject, another adds a predicate, and the group checks whether the result is a complete sentence.

Common errors to watch for
Some students write a fragment, such as “The tall tree,” and think it is finished. Others add a predicate without a clear verb, or create a subject-verb mismatch like “The boys runs.” Encourage children to reread the whole sentence aloud and listen for a complete idea. A helpful strategy is: name the who or what, then say what happens or what is true.
Free printable PDF download
Use this grade 4 write 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 activities give Grade 4 learners repeated, focused practice without clutter. Children see sentence structure in small steps, write their own meaningful parts, and strengthen the grammar knowledge they need for clearer stories, explanations, and opinion writing.
Helpful answers
Frequently asked questions
What do Grade 4 students practise in these worksheets?
They practise writing complete subjects and predicates, completing sentence halves, and checking that each sentence expresses a full thought.
What is the difference between a subject and a predicate?
The subject tells who or what the sentence is about. The predicate tells what the subject does, has, is, or feels.
Do these worksheets include complete subjects and complete predicates?
Yes. Students work with more than single words, so they see that a subject or predicate can include modifiers and extra details.
How can I help my child if they keep writing fragments?
Ask your child to identify the who or what and then the action or description. If one part is missing, have them add it before calling the sentence complete.
Can teachers use these pages for sentence-writing review?
Yes. They are useful for grammar lessons, literacy centers, small-group support, morning work, or review before students write paragraphs.
Is this grade 4 write 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 write 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 write 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.