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Commas Series

comma

Punctuating elements in a series

 

 

Commas with elements listed in a series
TWO ELEMENTS MORE THAN TWO ELEMENTS

Usually we use and to join similar elements: two verbs, two nouns, two adjectives, etc. It is important to make sure the words are like-word-forms (parallel word forms).

When listing more than two like-elements, use a comma to punctuate items in a series.  Placing a comma before and is optional.  See below.

VERBS

The biathlon athlete skis and shoots.    
 

VERBS

A triathlete runs, bikes, and swims.      

NOUNS

The biathlon athlete uses skis and a gun.
 

NOUNS

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

ADJECTIVES

The biathlon athlete is strong and focused.
 

ADJECTIVES

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

ADVERBS

In order to win, he must shoot quickly and accurately.
 

ADVERBS

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

PHRASES

He must be able to outwit and to out-last the others. 
 

PHRASES

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

CLAUSES

The biathlon athlete is a person who knows his strengths and who keeps his focus.
 

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

 

 

Comma before "and"
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, and The Oxford Style Manual

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!)

 

 

"The Oxford comma"

"Use commas in place of conjunctions to separate elements in a list of three or more items. The presence or lack of a comma before and or or in such a list has become the subject of much spirited debate. For a century it has been part of OUP to retain or impose this last serial (or series) comma consistently, to the extent that the convention has come to be called the "Oxford comma".…The last commas serves also to resolve ambiguity, particularly when any of the items are compound terms joined by a conjunction…" (Oxford Style Manual 121-2)

 

References for and against using commas before and or or

 

 

Word Play— 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.) 

Solution - lightbulbPop-Q "Tesla"

 

 

 

 

telescope and moonAlbertPractice 1

Albert "Renaissance man"

 

 

Editing
  1. Add commas and if necessary "and" to the sentences below.
  2. Compare your response to the answer on the right.

 

# YOUR RESPONSE ANSWER
1.
2. He adores his four children: Anna Haley Nina Milo.
3.
4.
5.
6.
7.
8.
9.
10.
 

 

 

 

 

 

 

Practice 2

captain
He sails boats and ships.

Word Play — What does each person do?

 

 

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). 

 

# YOUR RESPONSE  (OPTION) CHECK YOUR ANSWER
11. 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
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.

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