English and ESL Instructor
Here is an example of a sentence that lacks parallelism:
Jason plays football, lifts weights, and wrestling.
In this example, Jason is the subject of all three highlighted verbs. However, the last verb, wrestling, does not follow the same form as the first two, plays and lifts. To correct this, we will change the verb form of wrestling:
Jason plays football, lifts weights, and wrestles.
Now this sentence is fully parallel.