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Commas Series

comma
Punctuation & Word Play

 

 

 

Commas Join Items in a Series
WORD FORM COMMA USE

VERBS

A triathlete runs, bikes, and swims.      Placing a comma before and is optional.

NOUNS

The athlete uses running shoes, a bicycle, and swim goggles.

ADJECTIVES

A triathlete is strong, well-trained, and focused.

ADVERBS

In order to win, he must run swiftly, gracefully, and boldly.

PHRASES

He is able to outwit, out-last and out-play the others. 

CLAUSES

She was a woman who knew her strengths, who knew how to use her wit, and who wasn't afraid to "stick her head out".
 

Related page: using commas to set of comments or clauses

 

 

 

Using a comma before "and" clarifies meaning:
COMMA BEFORE AND NO COMMA BEFORE AND

Some writing style manuals recommend using a comma when a conjunction joins the last two elements of a series:  Chicago Manual of Style, Fowler's Modern English Usage, The Elements of Style, The U.S. Gov. Printing Office ,MLA, Harvard style manuals.

Some writing style manuals recommend not using a comma when a conjunction joins the last two elements of a series unless it causes the meaning to become unclear:  Associated Press, The New York Times, The Times

I would like a pastrami, cheese, peanut butter, and jelly sandwich.
Indicates one sandwich with four different ingredients.

I would like a pastrami, cheese, peanut butter and jelly sandwich.
Indicates one sandwich with three or maybe four ingredients.

I would like a pastrami and cheese, and peanut butter and jelly sandwich.
Indicates two sandwiches with two different ingredients. 

 

I would like a pastrami, a cheese, a peanut butter, and a jelly sandwich.
Indicates clearly four sandwiches with four different ingredients.  (Uses article - a.)

 

 

I would like to thank my brothers, Sarah, and Mary.
(He thanks at least four people: two brothers and Sarah and Mary)
 

I would like to thank my brothers, Sarah and Mary.
(He thanks his brothers whose names are Sarah and Mary!)

 

References for and against using commas before and or or.

 

 

 

Using a comma clarifies word form – noun or verb!
TWO COMMAS ONE COMMA NO COMMAS

All three items are verbs

Second item is a noun.

Second and third items are nouns.

Dancers
He kicks, rocks, and rolls.  
He verb + verb + verb.

rock(v.) = dancerock style 
 


kicks rocks
He kicks rocks, and rolls.
He verb + noun + verb. (nonsense)

  rock (n.) = stone


kick\
He kicks rocks and rolls.
  He verb + noun + noun. (nonsense)

rolls (n.) = bread

Person wateringHe waters, weeds, and plants.
He verb + verb + verb.

weed (v.) = remove ugly plants

Man weeding lawnHe waters weeds and plants.
He verb + noun + verb. (nonsense)

weed (n.) = ugly plant

weeds and plantsHe waters weeds and plants.
He verb + noun + noun.

performerHe performs, flips, and spins.
He verb + verb + verb.

He does three activities.  

flipsHe performs flips and spins.
He verb + noun + verb.

flip (n.) = 360 turn-over

spinsHe performs flips and spins.
He verb + noun + noun.


nonsense (n.) – something that is silly 

 

 

Model S

 

 

 

Common Mistakes
ERROR FIX

The appeal of Tesla's Model S lies in its sexy sports car design. (unclear use of modifiers)

The appeal of Tesla's Model S lies in its sexy, sports-car design.
If sexy is a second modifier to design, use a comma.

The appeal of Tesla's Model S lies in its sexy sports-car design.
If sexy is a single modifier to sports-car, don't use a comma.

Punch mark or fill-in your ballot.  (unclear word form meaning)
  

Punch, mark, or fill-in your ballot!   A comma joins items in a row (same word forms) -- in this case three verbs.  Using a comma before or is optional.) 

 

 

 

 

 

Practice 1

captain
He sails boats and ships.
Word Play -- What does each person do?

 

 

Select the response with the punctuation that best answers the question.

Remember that punctuation can determine whether a word form is a verb or a noun.  One option will be logical.  The other option might be silly (nonsense).  Can you tell the difference?

Compare your option choice to the answer by clicking the "check" button to the right.

 

# YOUR RESPONSE  (OPTION) CHECK YOUR ANSWER
1. playwright (n.) = a writer of plays and dramas;
script (n.) = written text and dialog;
script (v.) = to write the text and dialog for a movie or play
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.

pet groomer (n.) – person who washes and cuts the hair/fur of dogs and cats
13.
14. a masseuse= person who gives therapy in the form of body rubs.
15. pop (n.) = soft/soda drink; pop v. = hit;  bully = an aggressive cruel person