Form-Function Diagram: Our neighbor painted her fence light blue.

The sentence Our neighbor painted her fence light blue functions as a declaration. A declaration is a sentence or fragment that conveys information or makes a statement.

The noun phrase our neighbor functions as the complete subject. The possessive determiner our functions as the determinative of the noun neighbor. The noun neighbor functions as the simple subject. A subject is a word, phrase, or clause that performs the action of or acts upon the verb in the predicate.

The verb phrase painted her fence light blue functions as the complete predicate. A predicate is a word or phrase that contains a finite verb and that expresses the action performed by the subject or the state of the subject. The simple past verb painted functions as the simple predicate.

The noun phrase her fence functions as the direct object and the noun phrase light blue functions as the object complement. A direct object is a word, phrase, or clause that follows a transitive verb and receives the action of the verb. An object complement is a word, phrase, or clause that directly follows and describes or completes the direct object. The direct object noun phrase her fence contains the possessive determiner her that functions as the determinative of the noun fence. The noun phrase light blue contains a null determiner (zero article) and the adjective phrase light that functions as a noun phrase modifier of the noun blue.

Form-Function Diagram: Our neighbor painted her fence light blue

A form-function diagram is a visualization of the layers of grammar. The top identifies forms, or what words, phrases, and clauses look like. The bottom identifies functions, or what words, phrases, and clauses do. For more information about form-function diagrams, see A Form-Function Description of the Grammar of the Modern English Language: Book 1 (Level 9A) (A Form-Function English Grammar) and A Form-Function Description of the Grammar of the Modern English Language: Book 2 (Level 9B) (A Form-Function English Grammar).