frequent arguments frequent attacks frequent basis frequent blood frequent bouts frequent breaks frequent bus frequent buses frequent business frequent buyer frequent cases frequent cause frequent cause of death frequent causes frequent change frequent changes frequent checks frequent cleaning frequent collaborator frequent commentator frequent communication frequent complaint frequent complaints frequent confession frequent consumption frequent contact frequent contacts frequent contributor frequent customer frequent diarrhea frequent diseases frequent droughts frequent earthquakes frequent episodes frequent errors frequent exposure frequent feedback frequent fires frequent flier frequent flier miles frequent fliers frequent flights frequent flooding frequent flyer frequent flyer miles frequent flyers frequent guest frequent guests frequent hand frequent headaches frequent infections frequent injections frequent inspections frequent interruptions frequent intervals frequent maintenance frequent meals frequent medical frequent meetings frequent mistakes frequent monitoring frequent need frequent occurrence frequent occurrences frequent power frequent practice frequent presence frequent problem frequent problems frequent question frequent questions frequent reference frequent repairs frequent replacement frequent requests frequent service frequent shopper frequent side effect frequent side effects frequent source frequent speaker frequent stops frequent subject frequent symptom frequent symptoms frequent target frequent targets frequent the area frequent topic frequent travel frequent traveler frequent travelers frequent traveller frequent trips frequent type frequent updates frequent urination frequent use frequent user