marker "ne" seem to be not required:

:"They moche doubted that they shold not fynde theyr counte ne tale."
::Golden Legend, William Caxton 1483

Syntactic expletive

In formal linguistic theories a syntactic expletive is a pronoun that is used at the start of a sentence or clause when an argument is syntactically required but the referent is not immediately known. The basic meaning of

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