Salary is paid on a monthly basis.
I created the sentence above. It is assumed here that a year is divided into several periods. For example, each period has three months, and salary is sometimes paid every three months. In this case, can I say as follows?:
Salary is generally paid on a monthly basis, but sometimes on the/that period basis.
I am afraid whether this is correct because I couldn't find this usage. I want to use a period the length of which is defined myself.
This example may be not good. I merely want to know whether it is possible to use the form of "on the ... basis".