Converting Simple into Complex Sentences Worksheets | Subordinating Conjunctions Practice

Perfect for Grades 4–6, this grammar pack guides students step-by-step as they transform short, basic sentences into complex sentences that show cause, time, contrast, and purpose. With engaging examples and ready-to-use exercises, learners will build stronger writing and sentence construction skills.

Each worksheet includes clear instructions, conjunction prompts, and complete Answer Keys for effortless teaching and grading.

What’s Included:
6 printable worksheets on converting simple to complex sentences
Practice using common subordinating conjunctions (because, when, although, since, while, until, so that)
Clear explanations and examples for each conjunction
Sentence-building prompts with space to rewrite
Complete Answer Keys for all worksheets

Students Will Learn To:
✔ Identify the structure of simple and complex sentences
✔ Use subordinating conjunctions correctly
✔ Combine clauses smoothly and logically
✔ Strengthen grammar and writing fluency