one shall attempt to write a poem for two
two writers dishing up something in one
one starting with the introductory part
part two following until they conclude

do you get the drift to this type of verse*
verse one then verse two taking a turn
turn of hands working in an interchange
interchange is how it will be achieved

on reading this you'll have some ken
ken which shall show a collaboration's link
link the two pens together as one piece
*piece by piece the stanzas fall into place