De or het covergisting?

The correct Dutch article is:

de covergisting

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

How to use covergisting

the covergistingde covergisting
this covergistingdeze covergisting
that covergistingdie covergisting
our covergistingonze covergisting
your covergistingjouw covergisting
every covergistingelke covergisting
which covergisting?welke covergisting?
a big covergisting / the big covergistingeen grote covergisting, de grote covergisting