De or het versobering?

The correct Dutch article is:

de versobering

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

How to use versobering

the versoberingde versobering
this versoberingdeze versobering
that versoberingdie versobering
our versoberingonze versobering
your versoberingjouw versobering
every versoberingelke versobering
which versobering?welke versobering?
a big versobering / the big versoberingeen grote versobering, de grote versobering