Adverbs are used to describe actions and in English often end in -ly like depply, loudly, slowly. In a similar way, Spanish adds -mente to the corresponding adjective. alegre → alegremente(happly) triste → tristemente(saddly) 1. The adjective and -mente were originally considered as separate words, so any accent on the basic adjective is retained when it becomes an adverb. fácil → fácilmente(eas..