added to the root kula ; it therefore makes its Perfect in kulwidi ; but in the case of bula, fula, kula, lula, sula, tula, vula, and wula, the -ula is part of the Verb, and since it is radical, the Perfect is formed as a regular Verb in u; that is to say, by replacing the final a by -idi, the radical l becoming d before the i in the suffix. The Perfects, therefore, of these Verbs are budidi,fudidi, kudidi, ludidi, sudidi, tudidi, vudidi, and wudidi. Where the -ula is radical, the Verb must be dissyllabic ; when of more than two syllables it is clearly a suffix, for no roots have more than two syllables, so there is no difficulty in recognising the character of the termination.