I wasn't sure whether you'd like it.
She asked me whether I was interested in working for her.
I doubt whether it'll work.
It all depends on whether or not she's got the time.
It's very expensive and I'm so broke that I don't know whether I can afford to buy one. (Preliminary English Test; B1; French)
I'm going, whether she likes it or not.
Someone's got 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.
I don't know whether to stay or to go. (Preliminary English Test; B1; Spanish)