Penned adverbs are provided in this article. The words listed here are commonly found along with the verb penned in sentences. This reference page helps answer the question what are some adverbs that describe or modify the verb PENNED.
actually, carefully
hastily, neatly
originally, quickly
Hope this word list had the penned adverb you were looking for. In addition to adverbs used with penned, other example verb adverb pairings can be found on this site.
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