The comma is a punctuation character that is placed on the baseline and looks similar to a single quotation mark.

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13answers
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Should I put a comma before the last item in a list?

Should I put a comma before last item in list? I would like crackers, cheese and some soda. I would like crackers, cheese, and some soda.
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4answers
1k views

How should I punctuate around quotes?

The American convention in quotations is (typically) to place punctuation inside quoted text. But I always run into situations where the punctuation of the quote interferes with the punctuation of the ...
21
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5answers
6k views

Should there be a comma after “i.e.”?

If I remember correctly from English class, then one should put a comma after "i.e.", i.e., the Latin abbreviation for id est. But lately I've seen the comma after "i.e." dropped in books. So what is ...
18
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6answers
15k views

Should I always use a comma after “e.g.” or “i.e.”?

It seems that "e.g." is always followed by a comma but "i.e." is not. Why is that?
15
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4answers
1k views

Meaning of “My friend, who lives in Paris, is a teacher” with and without commas

Can anyone help me understand the difference in meaning between these two sentences? My friend who lives in Paris is a teacher. My friend, who lives in Paris, is a teacher. To me it ...
15
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2answers
6k views

Should you use a comma/period after “Thanks”/“Regards” in email signatures?

Normal practice is to end emails with a Thanks or Regards. My question is should there be a comma or a period or nothing after Thanks/Regards? Thanks, John Doe Or Thanks. John ...
13
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6answers
5k views

Where should the comma be placed in the salutation of a letter?

Sometimes I see a comma after the proper name: Hello Mr. Black, In order to give you.... But my native language is not English and I think that the comma in this phrase should be placed ...
12
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1answer
558 views

Really nice, Mat

I see a lot of people saying things such as Nice work, Nick Or Thanks, Mat Is the comma really needed? I'm not 100% sure because my spelling and grammar is not great, but I think it reads ...
12
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6answers
7k views

Using a comma before “but”

I was once told by an English professor that a comma should never be used before but in a sentence. For years, I have followed her advice but sometimes I just feel like it just needs to be there. On ...
12
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4answers
2k views

Is it appropriate to put a comma before “which”?

On Server Fault, we were discussing this question in chat. There are non-native speakers in the chat and somehow we got on the topic of grammar and proper use of commas. The sentence of interest: ...
12
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5answers
517 views

Which type of comma is used here?

I was reading a book called "The Penguin Guide to Punctuation" by R. L. Trask. It seems that the book doesn't explain all the uses of comma. It says "There are four uses of the comma, called the ...
12
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3answers
2k views

Parentheses vs. double commas vs. dashes to provide additional detail

When do you use commas and when do you use parentheses to provide more detail about something? For example: The suspect, Tom Wilson, is now being charged with murder. The suspect (Tom Wilson) is ...
11
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5answers
16k views

When do we need to put a comma after “so”?

I noticed that most of the times when the conjunction "so" is used at the beginning of a sentence, it is followed by a comma: So, this gets published but the fact that it is inaccurate gets ...
11
votes
2answers
13k views

In what cases should I use a comma after “please”?

As far as I can see from different texts, there seems to be no strict rule about putting comma after "Please" when it is used as an introduction to a request. Am I right? In what cases using comma ...
11
votes
5answers
654 views

Commas around non-parenthetical name like “The famous playwright, William Shakespeare, was born…”?

I commonly see commas used like: "The famous playwright, William Shakespeare, was born in Stratford-upon-Avon." It bothers me, but I'm curious to hear explanations of why this is done, and if it can ...
11
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5answers
28k views

Should there always be a comma after “therefore”,“However” etc.?

Should you always type a comma after "therefore","However" etc. in the beginning of a sentence? Also, when these (and similar) words are used in the middle of a sentence, should there be a comma ...
11
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1answer
3k views

“If” with implicit “then” question: Should a comma be used?

Consider the following phrase: If the fruit is an apple, it should be given to children. Is the comma after apple necessary? Is it optional? Is it wrong?
10
votes
2answers
12k views

When ending a list with “etc”, should there be a comma before “etc”?

When listing items and ending the list with "etc", should there be a comma before "etc"? E.g. red, green, blue, etc or red, green, blue etc Related question, though this one involves the word ...
9
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1answer
739 views

Is it proper usage to replace a comma in a list with a semi-colon in this situation (see details)?

While writing a proposal at work today I needed to mention a list of things and within that list were multi-part items. It seems like replacing the comma with a semi-colon in this situation would make ...
8
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4answers
234 views

Should enclosing commas be treated as parentheses?

I just read the following in Dan Ariely's book Predictably Irrational, [...] Zoe, and the other kids to whom I offered the same deal, was completely blinded by [...] p. 57 To me it would have ...
8
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2answers
7k views

Can a sentence starting with “While, …” be grammatically correct?

I have a colleague who often writes sentences in the form "While, [these circumstances would make X seem unlikely to be the case], [these other circumstances show that X is in fact the case]. For ...
8
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4answers
1k views

If you're using a quote with a period but do not want to end the sentence, do you keep the period?

For example. If I want to quote a passage from a writing, that says The cake is not a lie. and my sentence is: The book by author states that "The cake is not a lie." however studies show ...
8
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2answers
578 views

Comma after introductory phrases

I am no native speaker and always confused about the comma in introductory phrases, in particular in prepositional phrases. Is there any hard rule when a comma must be set? If I make a google search ...
8
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2answers
835 views

Comma placement when using quotes that end with a question mark [duplicate]

Possible Duplicate: How should I punctuate around quotes? I've been writing a letter to an editor, and one line of my response reads: In your article "What Makes Free Will Free?" you ...
7
votes
4answers
6k views

Placement of comma before quotation mark

What is the rule for comma placement before a quotation mark? When should it go before and when should it go after the quotation mark?
7
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3answers
491 views

Is a comma necessary in “What’s funny, is …”?

In the sentence What’s funny is Cat’s dry humour. Wouldn’t it be better to put a comma after “funny”: What’s funny, is Cat’s dry humour. This question entails a (at the time of writing) ...
7
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5answers
565 views

How to punctuate lists that are nested to three levels?

A basic list is punctuated like this: The park has some bears, deers, and other animals. (bears) (deers) (other animals) When commas appear inside the items of a list, or when lists appear ...
7
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3answers
497 views

What is the correct way to write “God bless America”?

I've seen people write "God bless America", and it drives me nuts. Shouldn't it be "God, bless America"?
7
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4answers
2k views

In which cases is a comma/period placed inside or outside of parentheses?

Are there cases where a period is placed inside parentheses? In which cases the period (or a comma) should be placed inside the parentheses?
7
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5answers
11k views

Is it acceptable to drop the comma in “Thanks, John”? [duplicate]

I grew up learning that the comma must be placed there, but it seems like an unnecessary interruption in a phrase that isn't ever spoken that way.
7
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3answers
15k views

Do you need a comma before a subordinating conjunction (like if)?

Are both of the following sentences correct? a: You can call me, if you need me. OR b: You can call if you need me. Note that in a:, the comma is placed before the "if" and is not present in case ...
7
votes
7answers
888 views

Correct comma use with “but” and “that”

Compare these 3 sentences: Both are based on librsync, but above that they behave quite differently. Both are based on librsync, but above that, they behave quite differently. Both are ...
7
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1answer
1k views

Comma or no comma before “too”?

Consider the following examples: "And it is a bottle, too." "And it is a bottle too." Is there a semantic difference between these two sentences? Or do they mean the same thing, with or without ...
7
votes
3answers
634 views

Is a comma needed after “a, b and c”?

Does a sentence like this need a comma where the question mark stands? Sunshine is an app for smartphones, tablets and computers [?] that lets you track and post weather news to blogs, social ...
6
votes
4answers
477 views

Comma splices and fragments in novels

I have noticed that many authors incorporate the use of fragments and comma splices in their novels. Given that this is acceptable practice in a novel, is it acceptable to use a comma splice or a ...
6
votes
3answers
225 views

Should there be a comma in “Tell <name> <other name> says hi.”?

I just wrote to someone, Tell Alivia Wyatt says hi. Am I missing a comma? It seems like there almost has to be one between the names. I find it a strange sentence to punctuate.
6
votes
4answers
844 views

When should you use a semicolon *with* a conjunction?

I know the basics of a semicolon—at least I think I do. Aside from delimiting verbose lists, it separates independent clauses of a sentence. So, if you have two independent clauses in a sentence, ...
6
votes
2answers
301 views

Is there any general rule of thumb that can be followed for where and when to add commas and full stops?

I always mess up with my writing by adding commas and full stops (periods) in the wrong places. Is there any rule of thumb or some other way that I can follow to avoid this problem?
6
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5answers
240 views

Meaning of “more original computer science”

If I write Knuth has written more original computer science than anybody else does it mean computer science that is more original or more computer science that is original? It seems like it ...
6
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3answers
2k views

Usage of commas with “albeit”

Is it correct to place two commas in this sentence? New York City plays a significant, albeit previously neglected, role in the urban narratives of [...].
6
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2answers
212 views

How to correctly assimilate dots, if at all?

I see this sentence: There are many examples like mining, farming, foresting etc., that are dangerous to society because they cause environmental damage. Shouldn't "etc.," be written instead ...
6
votes
4answers
547 views

How should this sentence be punctuated?

I'm not sure how to punctuate the following sentence: Besides the managers, Pete, John and Eric, also the secretary, Mary, came along to the meeting. I think I messed up completely with comma ...
6
votes
2answers
1k views

Comma in conditional sentence and in antithesis

I've got a couple questions: Should I always put comma between condition and consequence parts, like in the following sentence: If you have any questions, don't hesitate to ask. Should I always ...
6
votes
3answers
1k views

Placing a comma after a conditional statement

I've always had difficulties in figuring out where commas should be placed. For example, in a phrase containing a conditional statement, how should I write... If they don't arrive by noon, she'll ...
6
votes
3answers
378 views

Should the beginner's program read "Hello, World? [duplicate]

Possible Duplicate: Where should the comma be placed in the salutation of a letter? I was thinking today about comma usage and the typical first output for a beginning programmer. In the ...
6
votes
4answers
4k views

Should I capitalize the starting sentence after a greeting that ends in a comma (e.g. “Hello,”)?

Should I open the starting sentence after comma in adressing "Hi," ("Hello,") with capital letter? Hi, Xxxl, Dear Xxx L, let me ... vs. Dear Xxx L, Let me ... In Russian it ...
5
votes
4answers
17k views

Should there be a comma before “though” when it occurs at the end of a sentence?

Consider I don't know how outdated it is though. Should there be a comma before though, as in the following? I don't know how outdated it is, though.
5
votes
2answers
496 views

Tending to misuse comma

I tend to misuse commas in large way. Whenever I draft a professional mail, I get engrossed in the points, and somewhere along the way I get the feeling that this sentence is too long. I then ...
5
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3answers
360 views

What is a comma splice?

Is this a comma splice? What makes a sentence a comma splice? Being left at the altar on her wedding day, Pamela became furious.
5
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3answers
301 views

Why don't years have commas?

For example, if one asks "what's two thousand plus two thousand", one could write it like this: 2,000 + 2,000 But when one writes the date: January 2, 2000 So why do we put commas when ...

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