1. Preposition: This is the word that starts the phrase and shows the relationship between the noun or pronoun that follows it and another word in the sentence. Some common prepositions include "on," "in," "at," "to," "from," "with," "by," "for," and "about."
2. Object of the preposition: This is the noun or pronoun that follows the preposition and receives the action or relationship described by the preposition.
Example:
* "The cat sat on the mat."
* Preposition: "on"
* Object of the preposition: "the mat"
Prepositional phrases can function as adjectives (describing nouns) or adverbs (describing verbs, adjectives, or other adverbs). They add information about location, time, direction, manner, and other details to a sentence.