I've found a quote saying that "If-clauses that do not follow Conditional I, II or III are always wrong". Let's take this sentence as example:
"I have been wondering if it is okay to use weapons"
Would this be wrong because it is not using Cond. I, II, III? Or isn't this a sentence considered an "If-clause" at all?
"I have been wondering whether it is okay to use weapons or not"
would be an alternative but I am curious whether the first example is wrong or right though.