This example illustrates how to diagram an infinitive phrase being used as a noun in the position of an object of a preposition.  "To leave for Europe" is the infinitive phrase.  (NOTE: THE PREPOSITION IS NOT PART OF THE PHRASE.)  The preposition "about" is placed on the slanted line below the verb, "was".  Then the infinitive is placed on a standard in the position of object of the preposition.  "To" is on the slanted line, "leave" is on the horizontal line, and the prepositional phrase: "for Europe" is diagrammed under the word, "leave" as a prepositional phrase.  The infinitive phrase as an object is sometimes called "infinitive objective construction" in some books. Francine was about to leave for Europe.


Back to Verbal and Verbal Phrases

Back to Diagramming Index