again and again
commonly
day after day
day by day
frequently
habitually
in many instances
indefinitely
many a time
many times
many times over
most often
much
not infrequently
not seldom
oft
often
often enough
oftentimes
ofttimes
ordinarily
over again
over and over
recurrently
repetitively
routinely
several times
time
time after time
time and again
times without number
unseldom
usually
whenever you wish
year after year
repeat
heatedly