Parallelism helps to improve the rhythm of your sentences. If you can master parallelism, it will give your sentences a mature, sophisticated feeling. Parallel sentences are written by using two similar grammatical structures.
Not
parallel: The new plan has
value and is appealing. (noun + adjective)
Parallel:
The new plan has value and appeal. (noun + noun)
Adjectives
Not
parallel: My dog is small but snarls
a lot. (adjective + verb phrase)
Parallel:
My dog is small but ferocious. (adjective + adjective)
Verb Phrases
Not
parallel: Kathy watered my plants and
feeding my dog. (verb phrase + gerund)
Parallel:
Kathy watered my plants and fed my dog. (verb phrase + verb
phrase)
Adverbs
Not
parallel: Giraffes walk slowly yet
with grace. (adverb + noun)
Parallel:
Giraffes walk slowly yet gracefully. (adverb + adverb)
Prepositional Phrases
Not
parallel: My keys are either in the
drawer or the table. (prepositional phrase + noun)
Parallel:
My keys are either in the drawer or on the table. (prepositional
phrase + prepositional phrase)
I. Parallelism Using Coordinating Conjunctions
Structures joined by a coordinating conjunction (and, but, etc.) must have the same grammatical structure.
Expand the following sentences into sentences with parallel structures using the coordinating conjunctions in parenthesis.
Example: Kyoto has many beautiful temples. (and)
Kyoto has many beautiful temples and shrines.
II. Sentence Combining -- Coordinating Conjunctions
Combine the following sentences using a coordinating conjunction. You may omit words.
Example: I like burdock root. I don't like nattou.
I like burdock root, but I don't like nattou.
1. I've taken computer programming and political science.
I haven't taken sociology.
2. I can't wait to go to Switzerland.
I can't wait to eat the delicious chocolate.
3. My brother would enjoy a career in art.
My brother would also enjoy a career in design.
4. In 1980 I graduated from university.
In 1980 I went to Zambia.
In 1980 I started teaching.
5. I enjoyed my trip to Canada.
I was glad to be back home.
Here are two practice quizzes on parallelism from Captial Community
College: