De or het tripleren?

The correct Dutch article is:

het tripleren

This word is not in the word lists we use to double-check answers.

How to use tripleren

the triplerenhet tripleren
this triplerendit tripleren
that triplerendat tripleren
our triplerenons tripleren
your triplerenjouw tripleren
every triplerenelk tripleren
which tripleren?welk tripleren?
a big tripleren / the big triplereneen groot tripleren, het grote tripleren