Regrets adverbs are provided in this article. The words listed here are commonly found along with the verb regrets in sentences. This reference page helps answer the question what are some adverbs that describe or modify the verb REGRETS.
bitterly
deeply
greatly
immediately
sincerely
Hope this word list had the regrets adverb you were looking for. In addition to adverbs used with regrets, other example verb adverb pairings can be found on this site.
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