De or het overnameperiode?

The correct Dutch article is:

de overnameperiode

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

How to use overnameperiode

the overnameperiodede overnameperiode
this overnameperiodedeze overnameperiode
that overnameperiodedie overnameperiode
our overnameperiodeonze overnameperiode
your overnameperiodejouw overnameperiode
every overnameperiodeelke overnameperiode
which overnameperiode?welke overnameperiode?
a big overnameperiode / the big overnameperiodeeen grote overnameperiode, de grote overnameperiode