De or het regresvordering?

The correct Dutch article is:

de regresvordering

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

How to use regresvordering

the regresvorderingde regresvordering
this regresvorderingdeze regresvordering
that regresvorderingdie regresvordering
our regresvorderingonze regresvordering
your regresvorderingjouw regresvordering
every regresvorderingelke regresvordering
which regresvordering?welke regresvordering?
a big regresvordering / the big regresvorderingeen grote regresvordering, de grote regresvordering