There is a standard set of adverbs (words that modify verbs) that describe how often something happens, from not at all (never) to all the time (always). Let's see some examples from Yabla English.
I've never done that in my life.Play Caption
I very rarely have a day off.Play Caption
Do you have someone who can ... take the air out of your tires occasionally?
Captions 40-41, Will Smith - Enemy of the State - Part 1Play Caption
...I sometimes will write it on a piano.
Caption 27, Bee and Flower - InterviewPlay Caption
Whales feed at depth in waters that are often pitch dark.
Caption 19, Sustainable Human How Whales Change ClimatePlay Caption
I usually leave it to simmer a little bit.Play Caption
It is always held in Leicester Square.
Caption 25, In London with Lauren - Piccadilly CircusPlay Caption
The adverbs are written in bold above in increasing order of frequency: never, rarely, occasionally, sometimes, often, usually, always.
Search for examples of frequency adverbs on Yabla English to see them used in a real-world context.