I had to
Debí decírselo todos los días porque era perfecta todos los días.
I should have told her every day because she was perfect every day.
— Love Actually (2003)
Debí estar con ella cuando murió.
I should have been with her when she died.
— Nausicaä del valle del viento (1984)
Debí haber hecho esto hace años.
I should have done this years ago.
Debí tener la valentía de hacerlo hace seis años.
I should have had the courage to do it six years ago.
I should have taken the money.
Nunca debí haber tomado dinero prestado de él.
I should never have borrowed money from him.