De or het stammentegenstelling?

The correct Dutch article is:

de stammentegenstelling

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

How to use stammentegenstelling

the stammentegenstellingde stammentegenstelling
this stammentegenstellingdeze stammentegenstelling
that stammentegenstellingdie stammentegenstelling
our stammentegenstellingonze stammentegenstelling
your stammentegenstellingjouw stammentegenstelling
every stammentegenstellingelke stammentegenstelling
which stammentegenstelling?welke stammentegenstelling?
a big stammentegenstelling / the big stammentegenstellingeen grote stammentegenstelling, de grote stammentegenstelling