bp#3

1
UNbalance          INcomplete
UNcompatible     ILlegal 
UNglorious         ILliterate
UNgratitude        INdecent 
UNvariable          IMmature
IMpossible        IRrational 
INsane             IMperfect
IRresponsible    DIStoleran


Each prefix is different weather we add a UN, IN,IL,IM,IR,DI it all has to be done according to the roots or base of the words.


2 even though they all common because they sound like an s at the  end they all vary in the sense that once you pronounce them the meaning change to either voiced or voiceless words.