A prepositional phrase is a group of words that begins with a preposition and ends with a noun or pronoun. The preposition and noun or pronoun are called the object of the preposition. Prepositional phrases can act as adjectives or adverbs in a sentence.

Here are some examples of prepositional phrases:

• In the room (adverb, modifying the verb “waiting”)
• With the book (adjective, modifying the noun “student”)
• During the storm (adverb, modifying the verb “waited”)
• At the store (adverb, modifying the verb “meet”)
• Of the group (adjective, modifying the noun “member”)

In each of these examples, the prepositional phrase provides additional information about the noun or verb in the sentence.