pseudorepetitive
periodically
every so often
always
recurring
oft-repeated
punctual
forever
recurringly
repetitively
now and then
heterochronic
repeating
on an irregular basis
from time to time
repetitiveness
time of asking
now and again
every time one turns around
on-again, off-again
persistent
harmonic
recurrent
intermittently
time and time again
once in a while
repetitive
time and again
insistent
occasionally
on occasion
at times
quasiperiodic
roll around
periodic
periodical
come around
by fits and starts
habitually
severally
manifold
repeatedly
sometime
here and there
on and off
again and again
over and over
frequently
over and over again
this is where we came in