Comma - Wikipedia, the free encyclopedia
The comma (  ,  ) is a punctuation mark. It has the same shape as an apostrophe or single closing quotation mark in many typefaces, but it differs from them in being placed on the baseline of the ...
en.wikipedia.org/wiki/Comma
Comma Use ... a. Common starter words for introductory clauses that should be followed by a comma include after, although, as, because, if, since, when, while. ... b. Common introductory phrases that should be followed by a comma include participial and infinitive phrases, absolute phrases, nonessential appositive phrases,
owl.english.purdue.edu/handouts/grammar/g_comma.html owl.english.purdue.edu/handouts/grammar/g_comma.html
Use a comma to set off introductory elements, as in "Running toward third base, he suddenly realized how stupid he looked." ... It is permissible to omit the comma after a brief introductory element if the omission does not result in confusion or hesitancy in reading. If there is ever any doubt, use the comma, as it is...
grammar.ccc.commnet.edu/grammar/commas.htm grammar.ccc.commnet.edu/grammar/commas.htm
Use a comma before a coordinating conjunction (and, or, but, nor, yet, for, so) that separates two independent clauses. ... Use a comma after an introductory word, phrase, or clause that comes before a main clause.
leo.stcloudstate.edu/punct/comma.html leo.stcloudstate.edu/punct/comma.html
This handout offers seven easy steps to becoming a comma superhero ... MYTH: Long sentences need a comma. A really long sentence may be perfectly correct without commas. The length of a sentence does not determine whether you need a comma.
www.unc.edu/depts/wcweb/handouts/commas.html www.unc.edu/depts/wcweb/handouts/commas.html
Comma usage is in some respects a question of personal writing style: some writers use commas liberally, while others prefer to use them sparingly. ... For instance, the use of a comma before the "and" in a series is usually optional, and many writers choose to eliminate it, provided there is no danger of misreading:
www.uottawa.ca/academic/arts/writcent/hypergrammar/comm... www.uottawa.ca/academic/arts/writcent/hypergrammar/comma.html
The office of the Comma is to show the slightest separation which calls for punctuation at all. It should be omitted whenever possible. It is used to mark the least divisions of a sentence. ... Punctuation Marks in English Langauge : How to use a COMMA; The Comma: The office of the Comma is to show the slightest...
www.lousywriter.com/punctuation_comma.php www.lousywriter.com/punctuation_comma.php
l To separate main clauses linked by a coordinating; ... l To set off introductory elements ... l To set off non-essential or parenthetical elements...
www.nku.edu/~ocallaghant/Comma_files/v3_document.htm www.nku.edu/~ocallaghant/Comma_files/v3_document.htm
The comma has several uses in English grammar, all related to marking-off separate elements within a sentence. ... My $10 million estate is to be split among my husband, daughter, son, and nephew. Omitting the comma after son would indicate that the son and nephew would have to split one-third of the estate.
www.grammarbook.com/punctuation/commas.asp www.grammarbook.com/punctuation/commas.asp