each time;  every time;  whenever (something happens);  on the occasion of
 again;  once more;  a second time
 often;  again and again;  over and over again;  repeatedly;  frequently
 once;  one time;  on one occasion;  temporarily;  for a moment
 (how) many times;  (how) often
 (how) many times;  (how) often
 three times;  thrice;  many times;  over and over again;  often
 once;  one time;  on one occasion;  temporarily;  for a moment
 this occasion;  at this time;  now
 three times;  thrice;  many times;  over and over again;  often
 to repeat;  to be frequent
 to repeat;  to be frequent
 once;  one time;  on one occasion;  temporarily;  for a moment
 frequency;  number of times;  incidence
 hundred times;  many times
 midway (through);  halfway