Complete Subject - Includes all the words in the subject. Tells exactly who and what the sentence is about. Example: The big, black dog.
Simple Subject - The main word in the "Complete Subject." It will be a noun or pronoun. Example: dog.
Complete Predicate - Includes all the words in the predicate. Tells all about WHAT the subject is or does. Example: licked the coffee mug.
Simple Predicate - The main word in the complete predicate. Action word or linking word. It may be more than one word. Example: Jessica CAN EAT lunch. licked