Grammatically Correct: The writer's essential guide to punctuation ...

SENTENCE FRAGl\1ENT
PUNCTUATION
A sentence fragment is a group of words that is punctuated as a
sentence-that is, it begins with a capital letter and ends with a
terminal punctuation mark-but does not meet the criteria of "grammatically
complete" as defined above. A dependent clause or a
phrase, standing alone, constitutes a sentence fragment.
Just because a fragment isn't grammatically complete does not
mean it can never stand alone. Some fragments can stand independently
because they don't need anything added to add meaning.
Big deal.
No way.
Fat chance.
Over and out.
Pity.
If you insist.
To be sure.
More complex sentence fragments may be used intentionally for
effect. A fragment stands out more emphatically on its own than if
it were merged into a larger sentence.
It was hopeless to try to convince her to lend him the car that night. Or
any night, for that matter.
We ended up doing the job ourselves. Which, all things considered, turned
out for the best.
He dumped the contents of the purse onto the table. A cheap comb, some
crumpled tissues, a tattered address book, a few coins.
I said I would be here on time. And here I am!
You should employ this type of construction cautiously, but do
use it if it is the best way of capturing the nuance you want.
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