time and again

time and (time) again

Repeatedly; on multiple occasions. Why do you continue to trust John when he has lied to you time and again? Time and time again, they have violated the rules, yet you have taken no action against them.
See also: again, and, time
Farlex Dictionary of Idioms.

time and again

Again and again; repeatedly.
See also: again, and, time
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • time and (time) again
  • time and time again
  • time after time
  • back on (one's) feet
  • back on feet
  • once again
  • once again/once more
  • over and over
  • over and over (again)
  • once and again