De or het pervertering?

The correct Dutch article is:

de pervertering

Rule Words ending in -ing: almost always de. See the rule

How to use pervertering

the perverteringde pervertering
this perverteringdeze pervertering
that perverteringdie pervertering
our perverteringonze pervertering
your perverteringjouw pervertering
every perverteringelke pervertering
which pervertering?welke pervertering?
a big pervertering / the big perverteringeen grote pervertering, de grote pervertering