In LIS, negation can never be doubled, like in standard English and unlike in Italian. Differently from negative concord that we will see in the following paragraph, in doubling, the same negative element is repeated/reduplicated within the negative clause: the two instances of negation are cancelled, giving rise to a positive reading. In LIS, it is not possible to have two negative markers or two n-words (either identical or different) in the same sentence. Negative markers, quantifiers and adverbs are able, by themselves, to convey negative force to the sentence.