The complexity of an inflection class system is the average extent to which elements in the
system inhibit motivated inferences about the realization of lexemes' paradigm cells.
Research shows that systems tend to exhibit relatively low complexity in this sense.
However, representations of inflectional systems tend to include only affixal and regular
patterns, leaving questions about how irregular patterns and non-affixal 'layers' of
inflectional exponence affect the complexity of a system. We address these questions by …