De or het krotopruiming?

The correct Dutch article is:

de krotopruiming

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

How to use krotopruiming

the krotopruimingde krotopruiming
this krotopruimingdeze krotopruiming
that krotopruimingdie krotopruiming
our krotopruimingonze krotopruiming
your krotopruimingjouw krotopruiming
every krotopruimingelke krotopruiming
which krotopruiming?welke krotopruiming?
a big krotopruiming / the big krotopruimingeen grote krotopruiming, de grote krotopruiming