the functions of the various formal types overlap widely in some cases the variation between full and partial reduplication is used to avoid ambiguitiy (but not systematically) bases with two identical syllables can be reduplicated only partially (e.g. dede "opened" --> *dede~dede, but de~dede "open continually"; ta-cece "separated (layers)" --> *ta~ta-cece~cece, but *ta~ta-ce~cece "shivering, trembling" prefixed (derived) verbs reduplicate the prefix and the stem separately (e.g. ka-bola --> ka~ka-bola~bola "split in two frequently"); compounds reduplicate only the first element (e.g. tabu-siga --> tabu~tabu-siga "keep out of sun frequently")
Productivity
derivative RED with the prefixes ta-, ca-, ka- is productive; RED with the prefixes so-, kaca-, sa-, ma-, ka-, tava- is unproductive loan words are regularily reduplicated