Learn the definition, characteristics, examples and tips for simple , compound and complex sentences . Compare and contrast these sentence types and improve your writing skills with worksheets and exercises. Learn the differences between simple, compound and complex sentences , to write in more detail. Learn how to identify and diagram simple , compound , complex , and compound - complex sentences based on their clauses and punctuation. See examples, definitions, and diagrams of each sentence structure. Understanding sentence types is an important part of learning English. Knowing how to use simple, compound, and complex sentences helps you write and speak clearly. Each type has its own structure and purpose. In this lesson, you’ll learn what they are and how to use them correctly with easy examples.