Stemmed adverbs are provided in this article. The words listed here are commonly found along with the verb stemmed in sentences. This reference page helps answer the question what are some adverbs that describe or modify the verb STEMMED.
directly, largely
mainly, partly
primarily, probably
Hope this word list had the stemmed adverb you were looking for. In addition to adverbs used with stemmed, other example verb adverb pairings can be found on this site.
You can help by adding more adverbs in the comments. Thanks.