Sentence examples for commas should be used from inspiring English sources

It should be The prosecutors maintained: "This was not a trial... " etc.... Colons, rather than commas, should be used to introduce quotes, ie Guardian Style says: "Please use colons, not commas;" not Guardian Style says, "Please use... " etc.

Commas should be used to offset introductory adverbs that modify the entire sentence, not ones that modify a single element of the sentence (such as the verb).

A colon, rather than a comma, should be used to introduce a quotation: "He was an expert on punctuation," or to precede a list – "He was an expert on the following: the colon, the comma and the full stop".

Thus, early embryos, i.e., comma stage or earlier, should be used for detecting somatic GFP PGL-1 GFP PGL-1 before granules-1 is expressed ectopically.

Note that sometimes parentheses and commas can be used interchangeably.

* The comma between "lethargic" and "since" should not be used, as there is no natural pause here.

Some writers believe that a pause or breath indicates where a comma should be placed.

Inverted commas are used in place of apostrophes.

Commas are used to set off what's called "nonessential" or "nonrestrictive" information.

Make sure commas are used to separate the tags.

Link Commas, in particular, are used incorrectly and people often avoid using semicolons altogether.