I want to explain my problem with the following sentence:
No one knows if the excited stammerer knew of the earlier word, or simply made a mistake or if the story was just a clever marketing ploy of Lowe's.
We know that, when a clause starts with if that this clause acts a dependent clause. But in that example there has two dependent clauses. Is it possible?
Would anybody like to give some examples of this kind of sentences? At the same time, I have failed to realize the meaning of the cited sentence.