have to be moving along

(I) have to be moving along.

 and (I) have to move along.
It is time for me to leave. Bill: Bye, now. Have to be movingalong. Sally: See you later. Rachel: I have to be moving along. See you later. Andrew: Bye, now. Sally: It's late. I have to move along. Mary: If you must. Good-bye. See you tomorrow.
See also: have, moving