Final answer:
The complete prepositional phrase in the sentence is 'from the county clerk for jury duty'. Prepositional phrases include a preposition and its object and can function adjectivally or adverbially in a sentence.
Step-by-step explanation:
The phrase that is a complete prepositional phrase in the sentence “I received a jury summons from the county clerk for jury duty next week” is “from the county clerk for jury duty”. A prepositional phrase includes a preposition and its object, which can be a noun, pronoun, gerund, or noun phrase, and any modifiers of the object.
In the given sentence, “from the county clerk” is one prepositional phrase, where “from” is the preposition and “county clerk” is the object. The phrase “for jury duty” is another prepositional phrase, with the preposition “for” and the noun phrase “jury duty” as the object.
Prepositional phrases function in various ways: they can act adjectivally to modify nouns or adverbially to modify verbs, adjectives, or other adverbs. For example, in the sentence “We were no match for the division champions”, the prepositional phrase “for the division champions” serves to modify the verb phrase “were no match”, explaining against whom they were no match.
In summary, identifying the correct prepositional phrase can help in understanding the function that it serves within a sentence, whether it's providing additional details about the action or modifying a noun.