Division need not stop at naming classes. A speaker may list several persons or conditions and then assign each its relevant judgment, or first identify a whole and then distribute appropriate particulars among its parts.
First arrangement: Divide time into past, present, and future.
Second arrangement: Identify subjects and attach a suitable description to each.
In every case, one must ask by what criterion the division is being made. Without a defined criterion, claims of exhaustiveness are unreliable.