fluctuate
verb (used without object)
to change continually; shift back and forth; vary irregularly.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
I had, and still have, thoughts of South America, but am fluctuating between it and Greece.
From Life of Lord Byron, Vol. 5 With His Letters and Journals by Thomas Moore