@contrex,
Ronbee often gives solid, well thought out advice but to my mind, suggesting avoidance is something that is fine for native speakers who know what to use but for ESLs, I think we should come down on the side of even more thought out thinking it out.
With a fried brain, all I can offer at the moment is that 'ing' is always [??] more, well, continuing. Certainly, both present participles and past participles act as adjectives but exactly how and when is to be the subject of further cogitation.