Shifting adverbs are provided in this article. The words listed here are commonly found along with the verb shifting in sentences. This reference page helps answer the question what are some adverbs that describe or modify the verb SHIFTING.
constantly, continually, continuously, dramatically
endlessly, frequently, gradually, increasingly
merely, nervously, occasionally, perpetually
quickly, rapidly, restlessly, simply
slightly, slowly, steadily, subtly
suddenly, uncomfortably, uneasily
Hope this word list had the shifting adverb you were looking for. In addition to adverbs used with shifting, other example verb adverb pairings can be found on this site.
You can help by adding more adverbs in the comments. Thanks.