when composing a drabble one might consider form. however, the limitation of composing something consisting of exactly 100 words is in itself a form. one may argue that the limitation directs or informs the form of the composition.
however, again, a drabbler may chose any form or layout that they chose.
one may present their 100 words in a standard paragraph form.
and yet another
may present a series
of couplets. and so
it is agreed upon
that the form of a drabble is fluid and defined outside of the word count parameters. one may and should use any form.