tenzij means “unless”. Starts a sub-clause and sends its verb to the very end.
Subordinating · Onderschikkend
Ik ga niet, tenzij jij ook komt.
I'm not going, unless you come too.
We blijven buiten, tenzij het regent.
We'll stay outside, unless it rains.
Drag scrambled words into the right Dutch order and master inversion and the verb-final rule.