ABSTRACT
This chapter carries forward the exploration of diversity in semantic structures in some more phenomena such as modality, tense and plurality. In general, the patterns that are uncovered are described in terms of the presence or absence of operators for modality, tense, or negation and their interactions. This turns out to have cognitive consequences because the interaction makes sense only in the context of the conceptual/cognitive constitution of the formula/schema as a whole. Recurrent patterns in variation are highlighted by the typological generalizations that are formulated. Cross-linguistic evidence is provided to buttress these generalizations. This chapter argues that this can help anchor these generalizations in the bedrock of cognitive constraints.
