Tips for Punctuation
Tips for Punctuation
End Marks
* Use a period after a declarative or imperative statement:
I went to the library.
Sign your name here.
I went to the library.
Sign your name here.
* Use a question mark after a direct question or to indicate uncertainty:
What is your name?
Do not use a question mark after an indirect question: I asked them what time they were leaving.
What is your name?
Do not use a question mark after an indirect question: I asked them what time they were leaving.
* Use an exclamation point after an exclamatory or emphatic sentence or an interjection:
Give me a break!
Hey! Ouch! Wow!
Give me a break!
Hey! Ouch! Wow!
Comma
Use a comma:
* To separate words in a list or series:
The baby likes grapes, bananas, and cantaloupe.
The baby likes grapes, bananas, and cantaloupe.
* To separate two or more adjectives that come before a noun when and can be substituted without changing the meaning:
He had a kind, generous nature.
The dog had thick, soft, shiny fur.
Do not use the comma if the adjectives together express a single idea or the noun is a compound made up of an adjective and a noun:
The kitchen had bright yellow curtains.
A majestic bald eagle soared overhead.
He had a kind, generous nature.
The dog had thick, soft, shiny fur.
Do not use the comma if the adjectives together express a single idea or the noun is a compound made up of an adjective and a noun:
The kitchen had bright yellow curtains.
A majestic bald eagle soared overhead.
* To set off words or phrases in apposition to a noun:
George Eliot, the great 19th-century novelist, was born in 1819.
Do not use commas when the appositive word or phrase is essential to the meaning of the sentence:
The novelist George Eliot was born in 1819.
George Eliot, the great 19th-century novelist, was born in 1819.
Do not use commas when the appositive word or phrase is essential to the meaning of the sentence:
The novelist George Eliot was born in 1819.
* To set off nonessential phrases and clauses:
My French professor, who has an odd sense of humor, has been teaching for some 30 years.
Do not use commas when the phrase or clause is essential to the meaning of the sentence:
The professor who teaches my French class has an odd sense of humor.
My French professor, who has an odd sense of humor, has been teaching for some 30 years.
Do not use commas when the phrase or clause is essential to the meaning of the sentence:
The professor who teaches my French class has an odd sense of humor.
* To separate the independent clauses joined by a coordinating conjunction in a compound sentence:
He lives in New York, and she lives in London.
Some people like golf, but others prefer tennis.
He lives in New York, and she lives in London.
Some people like golf, but others prefer tennis.
* To set off interrupters such as of course, however, I think, and by the way from the rest of the sentence:
She knew, of course, that he was lying.
By the way, I'll be away next week.
She knew, of course, that he was lying.
By the way, I'll be away next week.
* To set off an introductory word, phrase, or clause at the beginning of a sentence:
Yes, I'd like to go with you.
After some years, we met again.
Being tall, she often gets teased.
Yes, I'd like to go with you.
After some years, we met again.
Being tall, she often gets teased.
* To set off a word in direct address:
Thanks, guys, for all your help.
How was your trip, Kathy?
Thanks, guys, for all your help.
How was your trip, Kathy?
* To set off a tag question:
You won't do that again, will you?
You won't do that again, will you?
* To introduce a short quotation:
* To close the salutation in a personal letter and the complimentary close in a business or personal letter:
* To set off titles and degrees:
Sarah Little, Ph.D.Robert Johnson, Jr.
Sarah Little, Ph.D.Robert Johnson, Jr.
* To separate sentence elements that might be read incorrectly without the comma:
As they entered, in the shadows you could see a figure lurking.
As they entered, in the shadows you could see a figure lurking.
* To set off the month and day from the year in full dates:
The conference will be held on August 6, 2001.
Do not use a comma when only the month and year appear:
The conference will be held in August 2001.
The conference will be held on August 6, 2001.
Do not use a comma when only the month and year appear:
The conference will be held in August 2001.
* To set off the city and state in an address:
Sam Green
10 Joy Street
Boston, MA 02116
If the address is inserted into text, add a second comma after the state:
Cincinnati, Ohio, is their home.
Sam Green
10 Joy Street
Boston, MA 02116
If the address is inserted into text, add a second comma after the state:
Cincinnati, Ohio, is their home.
Colon
Use a colon:
* To introduce a list, or words, phrases, and clauses that explain, enlarge upon, or summarize what has gone before:
Please provide the following: your name, address, and phone number.
Please provide the following: your name, address, and phone number.
* To introduce a long quotation:
* To separate hour and minute(s) in standard time notation:
The train arrives at 9:30.
The train arrives at 9:30.
* To close the salutation in a business letter:
Dear Sir or Madam:
Dear Sir or Madam:
Semicolon
Use a semicolon:
* To separate the independent clauses in a compound sentence not joined by a conjunction:
Only two seats were left; we needed three.
The situation is hopeful; the storm may lift soon.
Only two seats were left; we needed three.
The situation is hopeful; the storm may lift soon.
* To separate two independent clauses, the second of which begins with an adverb such as however, consequently, moreover, and therefore:
We waited an hour; however, we couldn't hang around indefinitely.
We waited an hour; however, we couldn't hang around indefinitely.
* To separate elements already punctuated with commas:
Invitations were mailed to the various professors, associate professors, and assistant professors; the secretary of the department; and some of the grad students.
Invitations were mailed to the various professors, associate professors, and assistant professors; the secretary of the department; and some of the grad students.
Dashes & Hyphens
* Use a dash to indicate a sudden break in continuity or to set off an explanatory, a defining, or an emphatic phrase:
* Use a hyphen to join the elements of a compound word or to join the elements of a compound modifier before a noun:
* Use a hyphen to divide a word at the end of a line:
Rasputin is one of history's most enig-
matic and intriguing figures.
Brackets & Parentheses
Rasputin is one of history's most enig-
matic and intriguing figures.
Brackets & Parentheses
* Use brackets to set off words or letters in quoted matter that have been added by someone other than the author:
* Use parentheses to set off nonessential information:
We spent an hour (more or less) cleaning up.
We spent an hour (more or less) cleaning up.
Apostrophe
Use an apostrophe to indicate:
* The possessive case of singular and plural nouns, indefinite pronouns, and proper nouns:
my sister's son
somebody's lunch
my two sisters' sons
Charles's house
the children's toys the Rosses' friends
somebody's lunch
my two sisters' sons
Charles's house
the children's toys the Rosses' friends
* The plural of letters, numbers, symbols, and words used as such:
too many thus's
ten 5's in a row
spelled with two e's
delete some &'s
ten 5's in a row
spelled with two e's
delete some &'s
* Missing letters in contractions and missing numbers in dates:
I'm (I am)
class of '95
ma'am (madam)
class of '95
ma'am (madam)
Quotation Marks
Use quotation marks:
* To set off direct quotations:
* To set off titles of short stories, articles, chapters, essays, songs, poems, and individual radio and television programs:
* To set off words and phrases that are being used in an unusual or questionable way or might be preceded by so-called:
:thmbup:
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