Commas between Compound Predicates

We learn from CMOS 6.23 that “a comma is not normally used to separate a two-part compound predicate joined by a coordinating conjunction.” In other words, when the subject isn’t repeated after a word like “and” or “but” in a compound sentence, a comma is usually omitted.

Quotation marks, with comma and period

Commas and Periods with Quotation Marks

According to The Chicago Manual of Style, commas and periods are almost always placed before a closing quotation mark, “like this,” rather than after, “like this”. This traditional style has persisted even though it’s no longer universally followed outside of the United States and isn’t entirely logical.

Style and Grammar in Promotional Copy

Anyone familiar with the grammar and style rules and guidelines in CMOS knows they come with a lot of qualifiers: normally, in most cases, in running text, in regular prose, depending on the context—I could go on and on. In life, very few rules are meant to cover every situation. The same is true in CMOS.