Forgot adverbs are provided in this article. The words listed here are commonly found along with the verb forgot in sentences. This reference page helps answer the question what are some adverbs that describe or modify the verb FORGOT.
absolutely, actually, apparently, completely, conveniently, easily
entirely, evidently, frequently, gradually, immediately, instantly
momentarily, nearly, occasionally, presently, probably, promptly
quickly, rarely, really, simply, speedily, suddenly
temporarily, totally, unfortunately, usually, utterly, wholly
Hope this word list had the forgot adverb you were looking for. In addition to adverbs used with forgot, other example verb adverb pairings can be found on this site.
You can help by adding more adverbs in the comments. Thanks.