Final answer:
A prepositional phrase begins with a preposition like 'in,' 'up,' or 'from,' and ends with a noun, adding detail about time, place, or manner to a sentence. Examples include 'in the sky,' 'up the mountain,' and 'from the top.'
Step-by-step explanation:
A prepositional phrase is a group of words that begins with a preposition and ends with a noun or pronoun, which is called the object of the preposition. This phrase provides additional information about time, location, direction, and more, acting as an adjective or adverb in a sentence. For example: