Giving reasons for doing something now or at some other time

Physiotherapists often have to ask their clients to move in a certain way, and they sometimes accompany such instructions with explanations. It turns out that these practitioners have an interesting resource—they can design their explanation to bear either upon the exact movement currently in play or on a more general or future case. I show that they make this distinction largely by how they deploy explanatory connectives like because, so, and so on—and, counterintuitively, how they omit such connectives. I finish by considering other datasets and discussing the pedagogical benefits, in any interaction, of being able to construct and convey different temporal domains that the account is meant to bear on.