For the most part, speakers use double negatives to emphasize a negative:
Double Negative
I ain't got
no money. ('
no' is added for emphasis)
What it expresses
I don't have any money. (OK. That is what I meant.) :up:
I have money. (Not OK. That is not what I meant.)
If someone thinks the negative statment, "I ain't got no money" means, "I have money", then they're just being overly picky about semantics, that's all. :wink:
In grammar, specifically semantics, using two negatives where just one will do seems rather inefficient, not to mention redundant, so using double negatives is not preferred by grammarians. But, in the real world where language is used to communicate our needs, using double negatives serves a purpose: emphasis.
1. I ain't got money.
(This is not a double negative. It means, I don't have money.)
2. I ain't got
no money.
(This is a double negative. It means, I don't have money, which is the same meaning as 1. but slightly different because I added "no" for emphasis. Adding "no" for emphasis means something like, "I
honestly/really don't have money. The more negatives I add, the more emphasis I give to
not having money. Here's a triple negative:
EX: I do
not have
no money,
none!
Now, if you wanted to state that you really didn't have any money whatsoever, which would you use, A. or B.?
A. I don't have any money.
B. I don't have no money, none.
Even though B. is ungrammatical in terms of semantics, the three negatives serve a communicative purpose by expressing that I truly, sincerely, really don't have any money at all.
Hope that helps.
All the best,
