Agreement-rich languages can be divided into two subtypes: C-Agr languages which have complementizer agreement, and T-Agr languages which have no complementizer agreement.

• 而在表示性数一致的词缀贫乏的语言(agreement-impoverished)中，词缀是通过在音系部分(phonological component)下移(affix lowering)附着在动词上的。 有着丰富的一致词缀的语言又可根据功能语类Agr的嫁接位置分为两种：C-Agr语言和T-Agr语言。