Phrasal Verbs Usando 'On' & 'Upon' - Esforzarse, arriesgarse o revelarse (activado)

to direct one's attention, energy, or efforts toward a particular goal, task, or objective

enfocarse en, concentrarse en

to provide information to law enforcement or authorities about someone's actions, particularly illegal or unethical actions

informar sobre, denunciar

to demand something firmly and persistently

insistir en, exigir

to reveal information that was meant to be kept a secret

revelar, dejar entrever

to give away information one has obtained about someone, particularly to someone in authority

delatar, chivarse

to watch an event or incident without getting involved

mirar

to secretly observe someone or something with the intention of gathering confidential or hidden information

espionar, observar en secreto

to focus one's effort, time, or attention on something in order to achieve a particular goal

trabajar en