I hear "〇〇 basis" a lot. But when do you use this expression?
The expression "on a day-to-day basis" means something happens on a daily basis or happens everyday. The word "basis" means a pattern, process, or a point at which something happens. This word can be attached to other words to describe a pattern of something happening in time, like "regular basis", "daily basis", "monthly basis", etc. There are of course a few other expressions which use "basis", however, these are the most common. Ex: I call my mom on a daily basis. Ex: She cooks on a regular basis.