De or het presentatietraining?

The correct Dutch article is:

de presentatietraining

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

How to use presentatietraining

the presentatietrainingde presentatietraining
this presentatietrainingdeze presentatietraining
that presentatietrainingdie presentatietraining
our presentatietrainingonze presentatietraining
your presentatietrainingjouw presentatietraining
every presentatietrainingelke presentatietraining
which presentatietraining?welke presentatietraining?
a big presentatietraining / the big presentatietrainingeen grote presentatietraining, de grote presentatietraining