A sentence is a group of words that expresses a complete thought. Every sentence must have a subject (who or what the sentence is about) and a predicate (what the subject does or is). Sentences can be simple, with just one main idea, or more complex, with clauses joined together. Good sentences begin with a capital letter and end with a full stop, question mark, or exclamation mark. They can state facts, ask questions, give commands, or show strong feelings. Understanding the basic parts of a sentence helps us write and speak clearly.
