10 - Introductory words and phrases are followed by a comma. These include transitional words such as "of course" and "additionally." ... It is permissible to omit the comma after a short introductory phrase.

What is the rule for adding commas?

Use commas after introductory a) clauses, b) phrases, or c) words that come before the main clause. a. Common starter words for introductory clauses that should be followed by a comma include after, although, as, because, if, since, when, while. While I was eating, the cat scratched at the door.

Do you put comma after furthermore?

When you use however, furthermore, moreover or therefore as intensifiers or for emphasis, we usually put commas around both sides of them.