You ask how questions with the interrogative formative -njani which is added to the subject concord
See also interrogatives
Unjani uphuthini?
Imnandi it's nice Ayimnandi it's not nice Injani
isiphuzo? how's the drink? Simnandi
kakhulu it's very nice Asimnandi it's not nice
This page- www.newt.clara.co.uk/isizulu/njani.htm
4 September 2002