The tightness is quite strong, but varies depending on which particle is meant, as there are at least three progressive markers in Palenquero:
ta
-ba
-ndo
The latter two are always suffixed. -ba can be suffixed to other particles and/or the verb itself. -ndo is always postverbal.
For a convenient overview of the position of this and related markers in Palenquero, see Schwegler (1998: 256).