De or het inflatiedaling?

The correct Dutch article is:

de inflatiedaling

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

How to use inflatiedaling

the inflatiedalingde inflatiedaling
this inflatiedalingdeze inflatiedaling
that inflatiedalingdie inflatiedaling
our inflatiedalingonze inflatiedaling
your inflatiedalingjouw inflatiedaling
every inflatiedalingelke inflatiedaling
which inflatiedaling?welke inflatiedaling?
a big inflatiedaling / the big inflatiedalingeen grote inflatiedaling, de grote inflatiedaling