De or het moralisering?

The correct Dutch article is:

de moralisering

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

How to use moralisering

the moraliseringde moralisering
this moraliseringdeze moralisering
that moraliseringdie moralisering
our moraliseringonze moralisering
your moraliseringjouw moralisering
every moraliseringelke moralisering
which moralisering?welke moralisering?
a big moralisering / the big moraliseringeen grote moralisering, de grote moralisering

Dutch words ending in moralisering

demoralisering

In compound words, the last part decides the article. See the rule