The prohibition expression Vてはいけない can become Vたらあかん in Kansai-ben. Similarly, the Vないで in standard Japanese can become either Vんといて or Vんとって in Kansai-ben. Paralleling standard Japanese, Vたらあかん expresses strong prohibition while Vんといて and Vんとって express a request for prohibition.
Like standard Japanese, Vな is also used in Kansai-ben for strong prohibition. However, instead of the dictionary form? as in standard Japanese, the stem