frequently

again and again generally intermittently many times often periodically regularly time and again usually

oft oftentimes ofttimes

as a rule at regular intervals at short intervals at times by ordinary customarily every now and then habitually in many instances in quick succession many a time much not infrequently not seldom ordinarily over and over recurrently spasmodically successively thick and fast very often

rarely seldom

infrequently not much uncommonly