(By Hedvig Skirgård): "This feature refers to Standard Negation, i.e. the constructions that mark negation of (at least) dynamic (not-stative) verbal predicates in declarative mood. This question aims to capture phonologically free markers that do not inflect (i.e. change form depending on TAM, person, number and other categories of the core arguments). These markers are often described as particles in the literature, but are also analyzed under other labels. We are interested in grammatical marking, i.e. dedicated, productive and obligatory marking. ❡
This particle does not have to be the sole marker of negation. There may be other markers in the language or the marker may be accompanied by other markers within the same construction. For example, the particle may be part of a double negation construction including both an affix and a particle."