1)There has to be something to do. Do we put "done' instead of "do"?-- No.
2)There has got to be something to do. Do we put "done" instead of "do"?-- No #1=#2
3)There has got to be something to get done. Do we need "it" before done? can we put "do" insted of "done"?- First, what are you trying to say? All of these have meanings: