0 (used especially in reporting questions and expressing doubts) if, or not: --
I wasn't sure whether you'd like it.
She asked me whether I was interested in working for her.
I was merely questioning whether we have the money to fund such a project.
I'm going, whether she likes it or not.
Someone has to tell her, whether it's you or me.
Let's face it - you're going to be late whether you go by bus or train.
1 (used to refer to one or more possibilities or to express uncertainty) if: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
We kunnen het stap voor stap voltooien, hoe lang de weg ook is en het kan niet worden voltooid, hoe kort de weg ook is, als je niet eens je voetafdruk markeert.