De or het hospitalisering?

The correct Dutch article is:

de hospitalisering

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

How to use hospitalisering

the hospitaliseringde hospitalisering
this hospitaliseringdeze hospitalisering
that hospitaliseringdie hospitalisering
our hospitaliseringonze hospitalisering
your hospitaliseringjouw hospitalisering
every hospitaliseringelke hospitalisering
which hospitalisering?welke hospitalisering?
a big hospitalisering / the big hospitaliseringeen grote hospitalisering, de grote hospitalisering