Phrases and clauses are the key building blocks of sentences. A clause contains a subject and a verb and can express a complete thought. A phrase does not contain a subject or verb.
The two types of clauses in English grammar are the independent and dependent clause. Both have a subject and verb which makes them clauses, but while independent clauses express a complete thought, dependent clauses do not. This is the main distinction.
Direct and indirect objects are key parts of most sentences. A direct object is the receiver of action while indirect object identifies to or for whom or what the action of the verb is performed.
Watch this video lesson on relative clauses to learn the basics. Understand defining and non-defining clauses, relative pronouns, and how to use them correctly.