Parallel Structure in Lists
Parallel list items use the same grammatical pattern for ideas of equal status—for example, all nouns or all verb-led phrases. Microsoft explicitly recommends consistent structure because it improves scanning and comprehension.
Use the same grammatical pattern across comparable list items; do not mix nouns, commands, and sentence fragments without a clear reason.
Key details
Important caveats
Clarity Boundary
Parallel structure is a readability rule for equivalent items, not a ban on every mixed structure in complex documents.
Structure Boundary
Comparable items should use matching grammatical forms, such as all nouns or all verb-led phrases.
Further guidance
Practical Application
Make comparable list items use the same grammatical shape—such as all nouns, all verb-led commands, or all full sentences—unless the content genuinely requires different structures.
Reader Check
If the items are meant to be equivalent, can each be read naturally after the same introductory stem? If not, revise the mismatched item or change the list structure.
Worked Example
Mixed: “Review the draft; approval of the budget; send the invoice.” Parallel: “Review the draft; approve the budget; send the invoice.”
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- Lists (opens in a new tab)Microsoft Style Guide · Bulleted lists for unordered related items and numbered lists for sequences or priorities