This quote from Albert Einsten includes a prepositional phrase - "Once we accept our limits, we go beyond them"
Prepositional phrases can modify nouns, e.g. the man in the moon.
If they are preceded by a preposition they also are referred to as prepositional phrases.
periphrastic construction using a prepositional phrase beginning with " of ": " the door of the house " .
A prepositional phrase usually starts with around, before, for, onto, over, to or through.