could you also tell me about this variation-" i dont know even"? Nothing is succeeding after even so how is it explained.

And for your side note.im not entirely sure what wer commenting about but.i came across a feed about "even"-ell.stackexchange.com/questions/31483/… If it helps ur cause in anyway it can.

Im really thankful.it was lucid and I couldn't have understood it better.thanks.

Oh.thanks fr yur answer. So 3. Is more like-even me who knows everything in this world fails when it comes to this matter-.hm.thats what i too think it to be.But are you sure of it.? And one more thing i wud like to ask is why is 2 not same as 3?