Once in every small group of (typically units of time): she visits every few weeks
More example sentences
- But forty or so of you who visit at least once every few days think I'm doing something right.
- With a bulk shop online once every few weeks you can top up on all basic foodstuffs and household items.
- The emphasis was moving away from local struggles to big protests once every few months.
Definition of every few in:
- The US English dictionary