HappyHippo at (Email Removed) says in : [nq:1]Hi, I am a newbie here. [/nq] They're not always interchangeable, but in the contexts where they are interchangeable "whether" tends to be regarded as more formal than "if". [/nq] In those two statements the two main problems have nothing to do with the eternal tussle between "if" and "whether".
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