ka-51past progressiveNankadya wali udya. / Wali udya nanikadya.I was eating that rice. / That rice, I was eating it.Nawakagomba.They were fighting.Ulimi wangu nokaluma gulo.My tongue was hurting yesterday.Migola yake nekaluma.Her ankles were hurting.Nawakakomana.They were killing each other.Nanikogoha.I was being afraid.Chikabula nawakadya.When we arrived, they were eating.Nawakalonga chikawaona.They were talking when we saw them.Nakazenga nyumba.He was building a house.Akaguluke, kamzengera nyumba yake.When she ran away, he was building her her house.Nanikamgambiriziza.I was translating for her.Nanikaputa.I was smokingNanikanywa.I was drinking.Nanikatumiya.I was using it.ka + ka > ka; ka- + ku- > aku-This prefix occurs after the subject prefix and before an object prefix, if any. See: a-2???Kwa dyiri ya Mnungu nadaha nikakusaidiya.For the sake of God, I can help you.Pande dya roti dyadaha dikegusa wantru kumi.A big piece of bread can satisfy ten people.Nimba hukasa kukoza?Why haven't you peed?Ka- used in the examples above are a mystery. -- Possibly ka- 'when'.