> {chay' mu'meyvam lo'lu'?} ... {chay' mu'meyvam lulo'lu'?}.
> {naDev puqpu' tu'lu'}
> Why isn't it {naDev puqpu' lutu'lu'}?
Because he goofed. You are right, it should be with lu-.
For more information about the mis-use of lu- read KGT starting on p168.
DloraH, BG