I shouldn't have
Es del almacén, ¿no debí haberla traído?
It's from the warehouse, shouldn't I have brought it?
— Retrato de una mujer en llamas (2019)
No debí haber perdido mi tiempo tratando de convencer a Tom de cambiar de idea.
I shouldn't have wasted my time trying to convince Tom to change his mind.
Tal vez no debí haber hecho eso.
Maybe I shouldn't have done that.