Is There an Over Marker for a Sequence of Events?

There are plenty of human languages that haven't and that specifically means and then. It is specifically for a sequence of events. For, um, Nat Langs, we'll talk about what Nat Langs do. Is it more common to have Nat Langs that show tense or is it just about equal that's lines that haven't don't? So I'm going to make a quick trip to walls.