alternate with

alternate with something

1. [for someone] to serve as a substitute for someone. I alternated with Fred as the lead in the school play. They asked Harry to alternate with Ron on the team.
2. [for something] to appear repetitively and regularly in a sequence with something else. (For instance, A alternates with B in the sequence ABABAB.) In this design the straight lines alternate with the circles. The red dots alternate with the blue ones.
See also: alternate
References in classic literature ?
Again, for the whole of a day or a morning the red would alternate with the black, but almost without any order, and from moment to moment, so that scarcely two consecutive rounds would end upon either the one or the other.
An alternate with a weak personality can quickly be influenced by a group whose dynamics have been forged by time - even 14 hours as in this case.