How do I form an adverb in Spanish?

An adverb usually goes alongside a verb to describe the way a person is doing something. In English we can make an ajective into an adverb with the ending -ly (quickly, neatly, angrily). It works the same way in Spanish with the ending -mente.1. Begin with an adjective (describing word) Ej. Rapido - Quick2. Change into its feminine version Ej. Rapida - Quick3. Add - mente Ej. Rapidamente - Quickly