Verbs

(v)patronize, patronise, shop, shop at, buy at, frequent, sponsordo one's shopping at; do business with; be a customer or client of
(v)frequent, hauntbe a regular or frequent visitor to a certain place“She haunts the ballet”

Adjectives

(a)frequentcoming at short intervals or habitually“a frequent guest”, “frequent complaints”
(s)frequentfrequently encountered“a frequent (or common) error is using the transitive verb `lay' for the intransitive `lie'”