[k] = <c> and <q> Prefix + bound base + suffix = co+ n + sequ + ence
Free stem + suffix = exist + ing
[ks] = <x> Prefix + bound base + suffix = ex + peri + ence
Prefix + free base + suffix = in + flu + ence
= <o> = <e> and in the patterns VCV and V.V
Bound base + suffix + suffix = pati + ent + ly
= in the pattern VCV
= = [k]= <qu>
Re: existing. The free stem exist analyzes to ex +ist, with the deletion typical after <x>.
Re: influence. The free base flu is not related to the free base flue “a duct for smoke or air.” Flue is apparently from Old English; flu is from Latin. The noun flu “a common illness” was clipped from influenza.