The phrase "irregular basis" is a correct and usable phrase in written English.
It typically refers to something that is done at unpredictable or inconsistent intervals. Example sentence: I have been exercising on an irregular basis since the start of the year.
I do have them on an irregular basis.
He receives unstarted kits from various sources on an irregular basis.
Although the satellite images are only updated on an irregular basis - meaning that pictures of mobile targets would be unusable - some defence experts have said the easy availability of information can increase the risks for military organisations.
This vast piece, part photographic image, part verbal commentary, documented sightings of a shabbily-dressed man who patrolled Smithfield on an irregular basis, sometimes disappearing for weeks before reappearing on a daily basis, only to slip away again.
Mr. Eskew said that the woman had performed chores around the house in Bethesda, Md., on "an irregular basis" and that Ms. Chavez had "provided her with spending money from time to time".
They may be having a significant effect on the local housing stock – regardless of whether there are many other hosts who sign up and then use the site on an irregular basis.
As that happens -- as continents drift apart, as mountain ranges rise and fall, as climate patterns shift -- earthquakes, volcanoes, tsunamis, typhoons, prolonged droughts, and other natural disturbances recur, even if on an irregular and unpredictable basis. .
Yet, epidemiological surveys indicate that approximately 30% of all patients brush their teeth on an irregular non-daily basis.
This method is ideal for customers who want to hire you to do work on an irregular, piece-meal basis.
We propose a first experimentation of irregular pyramid as a basis for a discrete geometrical modeler that can handle both discrete and continuous representations of geometrical objects.
While other physical activities provided by the school are on an irregular or non-daily basis, during recess all children have the opportunity to be physically active every single day.
