The patterns of negation in individual languages are often not unrelated to otherstructural characteristics. Mohawk, an Iroquoian language of northeastern NorthAmerica, is polysynthetic, with a high proportion of verbs in spontaneous speech.This trait has implications for its inventory of negative constructions. Most of thekinds of non-verbal clauses mentioned in the Questionnaire for Describing theNegation System of a Language by Miestamo (2025 [this volume]) are expressedin verbal predications in Mohawk, and are accordingly negated like other verbalclauses, with a construction that has evolved via a Jespersen cycle. There are nonon-finite clauses, so most dependent clauses are negated in the same way as mainclauses. There is no nominal case, so negation does not affect case marking, andnegation has no effect on determiners. There is no negative nominal derivation.The language does offer features of interest in the interplay between negation andtense, aspect, and modality.