(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 inflect (i.e. change form depending on TAM, person, number and other categories of the core arguments). These inflecting phonologically free markers are often described as ‘auxiliary verbs’ in the literature, but are also analyzed under other labels by some authors (such as STAMP morphemes (STAM = Subject-Tense-Aspect-Mood-Polarity) or inflecting pronouns). We are interested in grammatical marking, i.e. dedicated, productive and obligatory marking."