Can -qang words be used as adjectives after a noun?
You mean as in SuvwI' yoHqang "a willing-to-be-brave warrior"?
I don't think so.
On such verbs used as adjectives after a noun, I've only seen -Ha' and -qu' as verbal suffixes.
More like, qet SuvwI' Suvqang,
the warrior, that is willing to fight, runs
the willing-to-fight warrior runs.
Only verbs that express qualities in their unsuffixed form are used adjectivally. Suv fight is not one of those verbs. To say what you want in Klingon, you need a relative clause: qet Suvqangbogh SuvwI'.
So far, out of all the suffixes seen on verbs being used as adjectives in canonical Klingon, ONLY the rovers -be', -qu', and -Ha' have been used.
No audio on this one Jeremy :/
Do you mean to say that it gave you an audio exercise, but didn't have any audio? Are you using the Android app?
Yes. To both counts. :)
It seems that the problem is limited to Android. They are working on correcting it. Have you been able to hear any of the audio on the Android app?