Items in a series should be in parallel form to make a sentence easy to follow. Parallelism is achieved by joining words with similar words: nouns with nouns, adjectives with adjectives, adverbs with adverbs, prepositions (or prepositional phrases) with prepositions, and so forth.
The defense argued that the evidence was inconclusive, prejudicial, and irrelevant. (adjectives)
The defendant claims that on the day of the murder he was at home alone washing his car, mowing his lawn, and bathing his dog. (gerund phrases)
The witness told the police officer that the car rolled down the hill, over the lawn, and into the swimming pool. (prepositional phrases) |