Suppose I write: {Qo'noSDaq nujaHmoH chaH}. This means "they cause us to be going on kronos", i.e. the "going" takes place on kronos.

But if I write: {maHvaD Qo'noS lujaHmoH}, then this means "they cause us to go to kronos", i.e. "the destination of our going is kronos".

Are the above correct ?

Yes. You could also say the latter as Qo'noS nujaHmoH via the prefix trick.

-- 
SuStel
http://trimboli.name