Use commas to separate items in a list
Use “and” before the last item in a list
Use “or” before the last item when showing choices
Keep all items in the list in the same grammatical form
Use a colon before a list after a complete sentence
Use semicolons in a list when items already contain commas
Use parallel structure for clarity and consistency
Avoid mixing singular and plural forms in the same list
Make sure the list items match the sentence’s verb tense
Use punctuation consistently throughout the list