Parallel grammatical structure is very important in business communication; yet professionals often write lists that confuse the reader by changing tense, structure or meaning.
Conduct research about parallel grammatical construction and provide a definition. You may use Internet or book sources to find content. Your definition should be paraphrased, not directly copied from the source. Be sure to cite the source; a URL is sufficient for this DB.
Find an example of a list (series) within a sentence in your previous writing, or the writing of a business professional, that is not parallel construction. Present the before (incorrect) and after (correct) for the example sentence.
Example (dont use this sentence in your post this is just to show how it works): Cash donations are used to build houses, pay rent and mortgage, and education needed to be successful homeowners.
Rewrite #1 with extra words to better understand how to assess parallelism in a sentence; you should omit the extra to words in your rewrites: Cash donations are used to build houses, {to} pay rent and mortgage, and {to} educate homeowners.
Note: Most writers will omit the second and third use of to to streamline the sentence; however, mentally adding the word {to} can often help you write a sentence with parallel construction using the infinitive (to build, to pay, to educate, to write).
Rewrite #2 (better option): Cash donations are used to build houses, pay rent and mortgage, and educate homeowners.
Rewrite #3 (strongest option): Cash donations are used for house construction, mortgage payments and homeowner education.