gucaca (-cace)     v    1. to question, 2. to examine, 3. to ask another to repeat to check his veracity
ask    (another to repeat to check his veracity) gucaca
(each other) kubazānya
(each other to explain) gusiguzānya
(each other riddles) gusōkōrānya
(for) gusaba
(for daily) kubōbōtereza
(frequently) gusabiriza
(many in order to verify) gushīshōza
(many questions) kubazagiza
(of someone that which he has promised) guhāngūra
(oneself) kwībaza, kwītsa
(over and over again) kubaririkiza
(persistently, though refused) gucuna
(question) kubaza
(a riddle) gusōkōza
(stupid questions) kudedēmvya
En-En dictionary 
examine    gucaca, gucunaguza, gucunaguriza, gupīma, gusūzuma, guhwebutsa, kurāba
(to look intently at) kwihweza
(in prospect of bying) kugaragura
En-En dictionary 
repeat    gusubīra, kwongera, kugereka, kugerekeranya
(many times) kwiyongeranya
(to tell what one has heard while eavesdropping) gutumbūra
(to ask another to ~ in order to check his veracity) gucaca
En-En dictionary 
question    (to ask) kubaza
(to ~ in sense of examine) gucaca
(to ~ carefully) gucunaguza, gucunaguriza
(to ~ so strongly that one dares not deny again) kujīnjibura
En-En dictionary