--- In lojban@y..., "elder_newton" <Philip.Newton@d...> wrote: > --- In lojban@y..., John Cowan <jcowan@r...> wrote: > > Every "le" always has its "ku" explicit or implicit, and every > > "nu" its "kei". > > I think that also explains why both "kei ku" and "ku kei" work... and also why only one "ku" doesn't.