De or het borgbrief?

The correct Dutch article is:

de borgbrief

How to use borgbrief

the borgbriefde borgbrief
this borgbriefdeze borgbrief
that borgbriefdie borgbrief
our borgbriefonze borgbrief
your borgbriefjouw borgbrief
every borgbriefelke borgbrief
which borgbrief?welke borgbrief?
a big borgbrief / the big borgbriefeen grote borgbrief, de grote borgbrief