come along—
1. arrive:
- A bus came along and I waited in the long line to board.
2. progress or improve:
- Her daughter had a good marriage now, and the kids were coming along fine.
3. (imper.) hurry up; make more effort:
- Now come along, or we’ll be late for the boat.
go along—
1. move forward; proceed:
- When the wind is not up kiting can be frustrating as you go along very slowly.
2. = come along 2:
- We got settled and started Alice to school, and everything was going along nicely.
3. (imper.) go away:
- “Then go along and leave me,” she insisted, stopping short, “if I’m all that.”