Determining the Position of the Subject Part 2

A complete sentence expresses a complete thought. Also, a complete sentence always contains a subject and a predicate.

A subject (a noun or a pronoun with modifiers) tells who or what the sentence is about.

A predicate, such as a verb, tells what happens or what the subject is doing.
 

The subject is what the sentence is about, so it usually comes at the beginning of a sentence and is followed by the predicate.