Editing Comma (section)

===Certain adverbs===
Commas are always used to set off certain [[adverb]]s at the beginning of a sentence, including ''however'', ''in fact'', ''therefore'', ''nevertheless'', ''moreover'', ''furthermore'', and ''still''.

* ''Therefore, a comma would be appropriate in this sentence.''
* ''Nevertheless, I will not use one.''

If these adverbs appear in the middle of a sentence, they are followed and preceded by a comma. As in the second of the two examples below, if a semicolon separates the two sentences and the second sentence starts with an adverb, this adverb is preceded by a semicolon and followed by a comma.

* ''In this sentence, furthermore, commas would also be called for.''
* ''This sentence is a bit different; however, a comma is necessary as well.''

Using commas to offset certain adverbs is optional, including ''then'', ''so'', ''yet'', ''instead'', and ''too'' (meaning ''also'').

* ''So, that's it for this rule.'' or
* ''So that's it for this rule.''
* ''A comma would be appropriate in this sentence, too.'' or
* ''A comma would be appropriate in this sentence too.''