Kujibu (verb) and jibu ("answer", noun) come from Arabic أَجَابَ (ʾajāba, "to respond, to reply, to answer").
Isn't jibuni ok?
No deliniation of sigular or plural and suggestion drop down list has what i choose. After more than a year this app/course is still rife with inconsistencies
Hakuna dalili za kuamua kati ya umoja na wingi