la djan cusku di'e
> The principle is that everything is exported
> to the prenex in the order in which it (first) appears, *except* NA,
> which is always exported to the very beginning. In that way,
inserting
> "na" before the selbri (mixed with tenses any way you like) is
always the
> exact contradictory negation of the version without "na".
I doubt this can work in practice. {na} is consistently misused
by almost everybody, so I suspect that the rule will be eventually
generalized to order of appearance, {na} not excepted.