would give up, would surrender
Verás, nadie se rendiría ante el feroz Pirata Westley.
You see, no one would surrender to the ferocious Pirate Westley.
— La Princesa Prometida (1987)
Si estuviera en su lugar, todavía no me rendiría.
If I were in your shoes, I still wouldn’t give up.
Te dije que nunca me rendiría.
I told you I would never give up.