Prepositional Phrases PowerPoint. Don't Let Them Confuse You! Animated and interactive. Defines prepositions and prepositional phrases, gives examples of prepositional phrases with nouns, pronouns, gerunds, and noun clauses, discusses problems with subject-verb agreement and intervening prepositional phrases, has a short quiz or practice on identifying prepositional phrases in sentences and not confusing them with infinitives, and finally, presents five questions on common usage problems with ty