Support your students as they grow into confident, skilled writers with our comprehensive Writing Complex Sentences Worksheets! This resource is designed to build students’ understanding of sentence structure through targeted tasks that focus on combining, rearranging and refining simple ideas into rich, complex sentences.

Each worksheet section guides students through a different aspect of complex sentence construction. Students begin by combining simple sentences using subordinating conjunctions, then move on to completing unfinished clauses, rearranging sentence structure and editing errors. By breaking the process into manageable steps, these tasks help students practise both the mechanics and creativity of writing — ultimately improving fluency, punctuation and written clarity.

Writing Complex Sentences Worksheets support explicit grammar instruction while connecting directly to real-world writing skills. These worksheets are perfect for use during writing lessons, grammar workshops or literacy rotations. Whether your focus is on sentence expansion, cohesion or clarity, this resource gives students the tools to strengthen their writing with greater control and purpose.

This resource is part of our Year 4 English Unit: Complex Sentences & Conjunctions.

Key Learning Outcomes:

• ✅ Combine simple sentences into complex sentences using subordinating conjunctions
• ✅ Complete partial sentences by adding appropriate clauses
• ✅ Rearrange sentence structure to experiment with clarity, order and emphasis
• ✅ Edit sentence-level grammar errors to improve accuracy and cohesion
• ✅ Develop flexibility, fluency and confidence in sentence construction

What’s Included:

• Four structured worksheet sections:
• – Section 1: Combine two simple sentences using conjunctions such as because, while and although
• – Section 2: Complete unfinished sentences by adding dependent or independent clauses
• – Section 3: Rearrange sentences to place the dependent clause first, applying correct punctuation
• – Section 4: Identify and correct errors in complex sentence structure

Materials Needed:

• Printed worksheets (on paper or card)
• Pencils, pens or highlighters
• Optional: anchor chart or conjunction word bank for student reference

How to Use:

1. Review the purpose and structure of complex sentences with your class.
2. Introduce common subordinating conjunctions and how they affect meaning between clauses.
3. Guide students through the worksheet tasks, beginning with sentence combination and progressing to editing and rewriting.
4. Encourage students to read their completed sentences aloud to check for fluency and punctuation.
5. Use student responses for peer feedback, class discussion or formative assessment.

Ideas for Classroom Use:

• 💡 Use during your grammar block to consolidate complex sentence instruction
• 💡 Include in literacy rotations or writing centres for independent practise
• 💡 Highlight strong student examples to use as model sentences on your writing wall
• 💡 Pair students to complete sections collaboratively and encourage discussion around structure choices
• 💡 Use the final task for assessment or as a writing warm-up before a longer text

Teacher Tips:

• 💛 Use before-and-after sentence examples to show how conjunctions add detail and clarity
• 💛 Provide sentence stems or scaffolds for students needing support with clause construction
• 💛 Extend stronger writers by asking them to revise their sentences using different conjunctions
• 💛 Create a class display of conjunction types sorted by their function (time, cause, contrast, condition)

Writing Complex Sentences Worksheets offer a structured and supportive way to strengthen sentence fluency, grammar and clarity — giving students the tools they need to become confident and capable writers across all subject areas.