Weegy: C. Add "?ed" to irregular base forms to form the past participle. User: what does an adjective describe? Weegy: 1. [ The part of speech that modifies a noun or other substantive by limiting, qualifying, or specifying and distinguished in English morphologically by one of several suffixes, such as -able, -ous, -er, and -est, or syntactically by position directly preceding a noun or nominal phrase.
2. Any of the words belonging to ... (More)