>>7298761M8 this shit ain't complicated. Do you really think you stress the third syllable in "banana"? I would call "banana" an amphibrach, which means it goes da DUM da. To take a longer word, "derivation" goes DUM da DUM da; two trochees (since the secondary stress goes on the first syllable); or according to a 4-value system, probably 2 1 4 1 or perhaps 3 1 4 2. You could even scan "Antidisestablishmentarianism" as something like 2 1 2 1 3 2 1 4 1 3 1, or in traditional terms as DUM da da da DUM da da DUM da DUM da, or a dactyl followed by an amphibrach followed by an iamb followed by another amphibrach. Metrical feet are mostly arbitrary, really.