You should brush your teeth on a daily basis at minimum.
The flights to Fiji leave on a weekly basis.
Cars must be checked on a yearly basis.
The basis for most liquids is water.
An example of a basis is the foundation of a house.
An example of a basis is the reason for which someone may choose to affiliate himself with a specific party.
An example of basis is the butter in a recipe for hollandaise sauce.
The collection of all possible unions of basis elements of a basis is said to be the topology generated by that basis.