(fe) ban xali watu

 

at some point in the future , eventually

Etymology:

fe, ban, xa + -li, watu
fe
(p)  at (time), at (unspecified place), in (time), for (for the first time, etc.), of (relating to, number, quantity, amount)
ban
(d)  some, certain
xa
(par)  will, shall (future tense marker)
-li
(t xfik)  relating to, of
watu
(b)  time