De or het wetsuitlegging?

The correct Dutch article is:

de wetsuitlegging

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

How to use wetsuitlegging

the wetsuitleggingde wetsuitlegging
this wetsuitleggingdeze wetsuitlegging
that wetsuitleggingdie wetsuitlegging
our wetsuitleggingonze wetsuitlegging
your wetsuitleggingjouw wetsuitlegging
every wetsuitleggingelke wetsuitlegging
which wetsuitlegging?welke wetsuitlegging?
a big wetsuitlegging / the big wetsuitleggingeen grote wetsuitlegging, de grote wetsuitlegging