What is faulty parallelism?

Faulty parallelism refers to the lack of parallelism and the subsequent loss of clarity. It is a grammatical error that occurs when elements in a sentence that are meant to be similar are not expressed in the same grammatical form. For instance, if a sentence includes a list of actions, all items should be in the same grammatical form:

  • My hobbies are painting, swimming, and taking photos.
  • My hobbies are painting, swimming, and to take photos.