cada tanto tiempo

= every so often, every now and then, every now and again, every once in a while

Ex. Every so often, the mist cleared and I could see sunlight in the distance.

Ex. I can walk on that foot, but as you described, every now and then without warning, the foot and ankle give way.

Ex. Every now and again, someone gets the fame they deserve.

Ex. It does help to every once in a while ask where we came from and where we are going as a library.

* * *

= every so often, every now and then, every now and again, every once in a while

Ex: Every so often, the mist cleared and I could see sunlight in the distance.

Ex: I can walk on that foot, but as you described, every now and then without warning, the foot and ankle give way.

Ex: Every now and again, someone gets the fame they deserve.

Ex: It does help to every once in a while ask where we came from and where we are going as a library.