bold enough to; daring enough to
Siempre lo he pensado, pero nunca me he atrevido a decírtelo.
I've always thought so, but I've never dared to tell you.
— El médico de Budapest (2020)
Nunca me he atrevido a hablar con ella.
I've never dared to talk to her.
Esa perra con la que se estuvo acostando Iván se ha atrevido a llamar.
That bitch Iván was sleeping with actually had the nerve to call.
— Mujeres al borde de un ataque de nervios (1988)
Mary no se habría atrevido a retarlo.
Mary wouldn't have dared to challenge him.