The document discusses various aspects of writing effective sentences, including:
- The definition of a sentence as a group of words that expresses a complete thought with a subject and verb.
- The different types of subjects (simple, complex, compound) and predicates.
- The four main types of sentences based on structure (simple, compound, complex, compound-complex).
- The four kinds of sentences based on function (declarative, interrogative, exclamatory, imperative).
- The definition and types of clauses (main/independent and subordinate/dependent) and phrases.
- Common errors that can result in faulty sentences like fragments that do not express a complete thought.