couldn't
Chad, ¡te dije que no se podía confiar en ella!
Chad, I told you she couldn't be trusted!
— Todo en Todas Partes al Mismo Tiempo (2022)
Tom no se podía acordar de qué le había dicho Mary que hiciera.
Tom couldn't remember what Mary had told him to do.
No se podía entender sus preguntas.
His questions were unintelligible.
Tom dijo que no se podía acordar de la última vez que vio una película.
Tom said he couldn't remember the last time he watched a movie.
Tom no se podía concentrar en su trabajo.
Tom couldn't concentrate on his work.
You couldn't go very fast.
No se podía detectar el problema hasta que ya era demasiado tarde.
The problem couldn't be detected until it was already too late.
Tom no se podía creer lo que decía Mary.
Tom couldn't believe what Mary was saying.
The wheel couldn't be repaired.