abstaining
ascertaining
attaining
campaigning
caning
chaining
complaining
constraining
containing
deigning
detaining
disdaining
draining
entertaining
explaining
feigning
gaining
maintaining
ordaining
overtraining
painting
pertaining
raining
refraining
regaining
reigning
reining
remaining
restraining
retaining
retraining
staining
straining
sustaining
training
waning