Bantu languages use different combinations of the approximately 24 different Proto-Bantu noun classes. The language with the highest number of documented "noun" classes is Ganda, which utilizes 21 of the 24 noun classes. This ranges all the way to zero, which is the case in Komo D23, whose "noun" class system has faded out over time. Languages that have approximately six classes paired for singular and plural and about six other classes that are not paired (e.g. infinitive and locative classes) are classified as canonical noun class systems, systems that have many "noun" classes. These systems are far more typical of Bantu languages than the alternative, reduced noun class systems, such as Komo D23 and other languages that have limited "noun" classes.