The executive director of a nonprofit, also known as the groupâs chief executive officer, is responsible for developing the nonprofitâs direction and vision. The exact duties of an executive director can vary depending on the size of the organization.
These two sentences can be combined into a compound sentence with a semicolon, appropriate conjunctive adverb, and comma. Like the coordinating conjunction, each conjunctive adverb has an individual meaning; thus, you should use whichever one fits the sense of the sentence you are writing.
The use of the comma would also apply when any of the seven coordinating conjunctions (and, but, or, nor, for, so, yet) join two independent clauses. Notice in the next example that we do not use a comma before and because it does not join two independent clauses but merely joins two verbs: Miguel took piano lessons for sixteen years and today is an accomplished performer.