Parallel construction means that like parts of a document are treated in the same way. Parallel construction helps create logical flow, so the reader can move through the document. When parallel construction is violated, readers subconsciously know something is wrong, even if they can’t recognize what it is.
When you use bullets, numbers, heads, or subheads, pay attention to parallel construction. Most bullets are organized with a lead verb. With numbers, each number usually is a complete, stand-alone sentence. Here’s an example of proper parallel construction for bullets:
Correct: Here’s the plan for communicating the new vacation procedures:
· Draft the procedures.
· Have the draft reviewed.
· Revise draft.
· Obtain approvals.
In the above example, each bullet starts with a verb. Here’s the same example, but in this case, the bullets do not follow parallel construction:
Incorrect: Here’s the plan for communicating the new vacation procedures:
· Draft the procedures.
· The draft is reviewed.
· The draft is revised.
· Obtaining approvals.
Parallel construction also applies to sentences.
· Incorrect: Reading a book is easier than to write one.
· Correct: Reading a manual is easier than writing one.
· Incorrect: Jane researched her book reading archives and by interviewing subject matter experts.
· Correct: Jane researched her book by reading archives and by interviewing subject matter experts.
