No le dije a mi mamá que fracasé el examen por miedo a que me castigara.I didn't tell my mom that I flunked the test for fear that she would ground me.
Debido a la reciente ola de crimen, muchas personas han decidido no salir de sus casas de noche por miedo a ser atracados.Due to the recent crime wave, many people have decided not to go out of their houses at night out of fear of being mugged.
El testigo decidió no cooperar con las autoridades por miedo a lo que el mafioso le fuera a hacer.The witness decided not to cooperate with authorities, fearing what the gangster would do to him.