On the other side of the debate are dual-mechanism approaches which posit that regular verb forms are computed in a rule-processing system while irregular verbs are processed in associative memory.

联结主义认为使用单一机制的神经网络系统足以解释规则和不规则语素变体； 双机制则认为需要规则系统和联想记忆两个不同的机制对此进行解释。