De or het duozitting?

The correct Dutch article is:

de duozitting

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

How to use duozitting

the duozittingde duozitting
this duozittingdeze duozitting
that duozittingdie duozitting
our duozittingonze duozitting
your duozittingjouw duozitting
every duozittingelke duozitting
which duozitting?welke duozitting?
a big duozitting / the big duozittingeen grote duozitting, de grote duozitting