The English gerund is not the same as the Spanish gerundio. In English grammar, the gerund is an -ing verb which is used like a noun as the subject of sentence, or after certain verbs. The Spanish gerundio is a verb that indicates a continuing action. It corresponds to the English present participle which is also used in progressive tenses with the verb be. For example: I like running - Me gusta correr (no gerund in Spanish). Running is a good for your health - Correr es bueno para tu salud (no gerund as a subject in Spanish. Instead, the infinitive is used)