Playing an online lexicogrammar game, I met the word "unbelievable" written with a swear word "f_cking" inserted between the first and second syllables: "un-f_cking-believable".
I understand that it is done for emphasis, but I don't understand the placement of the intensifier f_cking:
Why wasn't it inserted before the stressed syllable as goes the explanation of the mistake I made? Are there any exceptions to the rule? Has it anything to do with the negative prefix un-? If yes, is there's more to it than that that I should bear in mind using an intensifier between syllables?