Whether it rains or not, we’ll hold the sports meet.
They’ll find out the truth, whether or not you tell it to them.
Whether or not we like it, we have to accept it.
Whether you are willing or not, you have to do it.
A: I don’t like this movie.
B: Look, I already paid for the tickets, so whether you like it or not we’re going to finish watching it.
A: Well, I’ll just read a book then.
B: Don’t be such a stick in the mud. Just watch it with me.
A: But I don’t like it.
B: Come on, give it a chance. The movie just started.