De or het pornoverslaving?

The correct Dutch article is:

de pornoverslaving

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

How to use pornoverslaving

the pornoverslavingde pornoverslaving
this pornoverslavingdeze pornoverslaving
that pornoverslavingdie pornoverslaving
our pornoverslavingonze pornoverslaving
your pornoverslavingjouw pornoverslaving
every pornoverslavingelke pornoverslaving
which pornoverslaving?welke pornoverslaving?
a big pornoverslaving / the big pornoverslavingeen grote pornoverslaving, de grote pornoverslaving