We have the {nom yIghoSqu'} "maximum speed", as an example of combining the {nom} and {-qu'} in order to produce the meaning of "maximum".

However the {-qu'} is a rover. So, if on the verb we have more than one suffixes already, then where do we place it ?

If we want to say "quickly they are able to corrupt him", then what would we need to write, in order to produce an effect similar to the {nom yIghoSqu'} ?

{nom luqalqu'moHlaH}

{nom luqalmoHqu'laH}

{nom luqalmoHlaHqu'}

Which one of the above should someone choose ?

Despite what it says in TKD, we have seen that the rovers that -be' and -qu' can either intensify the immediately preceding element or everything before it. The latter is what's happening in nom yIghoSqu': it's not GO! (fast); it's GO FAST! (the whole sentence is intensified).

Now your example is not a good one. nom means quickly all by itself. What you're asking is how to say they are able to corrupt him as fast as possible. The equivalent, based on what we know of rovers, would be nom luqalmoHlaHqu'. But I caution against casually using intensifiers like this. In a short, obvious phrase like nom yIghoSqu', it's not too hard to figure out that the -qu' applies to everything. In a complicated phrase like nom luqalmoHlaHqu', you have to first work out whether the speaker intends to intensify everything or just the -laH. I wouldn't use intensifiers this casually without making my context perfectly clear.

-- 
SuStel
http://trimboli.name