Sentences

A sentence is a group of words that tells a complete thought. At the beginner level, it is important to know the four main sentence types: declarative, interrogative, imperative, and exclamatory. • A declarative sentence gives information or makes a statement. It usually ends with a period. • An interrogative sentence asks a question. It usually ends with a question mark. • An imperative sentence gives a command, request, or instruction. It can end with a period or an exclamation mark. • An exclamatory sentence shows strong feeling or excitement. It usually ends with an exclamation mark. Learning these types helps you understand the purpose of a sentence. When you read or write, ask yourself: Is this telling, asking, commanding, or showing strong feeling? This simple question helps you identify the sentence type quickly. Remember that the punctuation mark often gives a strong clue. A period usually means a statement, a question mark means a question, and an exclamation mark often means strong feeling or a strong command.

Most sentences have two main parts: the subject and the predicate. The subject tells who or what the sentence is about. The predicate tells what the subject does or says, or what happens to the subject. • In the sentence "Tom runs," the subject is Tom and the predicate is runs. • In the sentence "The birds are singing," the subject is The birds and the predicate is are singing. A sentence needs both parts to make a complete thought. The subject can be a noun, such as boy, school, or flower, or a pronoun like he, she, or they. The predicate usually has a verb, which is the action or state of being. To find the subject, ask "Who or what?" To find the predicate, ask "What does the subject do?" or "What is happening?" These questions are very useful for beginners. Understanding subject and predicate helps you build correct sentences and check your writing. It also helps you see whether a sentence is complete or incomplete.

Sentence structure tells us how parts of a sentence are put together. A simple sentence has one independent clause. An independent clause is a group of words with a subject and a verb that makes a complete thought. • A simple sentence can be short: "Birds fly." • A compound sentence has two independent clauses joined by a conjunction like and, but, or, or so. • A complex sentence has one independent clause and one dependent clause. A dependent clause has a subject and verb, but it does not make a complete thought by itself. • A compound-complex sentence has at least two independent clauses and one dependent clause. Beginners should recognize it, even if they do not use it often. Phrases are groups of words that do not have both a subject and a verb. Clauses have a subject and a verb. A fragment is an incomplete sentence. It may be missing a subject, a verb, or a complete thought. A run-on sentence happens when two complete ideas are joined incorrectly without the right punctuation or joining words. Learning these parts helps you write clear, correct sentences and avoid common mistakes.