couldn't
Tom no se podía creer que Mary de verdad le hubiera besado.
Tom couldn't believe that Mary had actually kissed him.
El monte era tan espeso que casi no se podía andar por él.
The mountain was so thick that it was almost impossible to walk through it.
Tom no se podía acordar de qué le había dicho Mary que hiciera.
Tom couldn't remember what Mary had told him to do.
Tom no se podía creer lo que decía Mary.
Tom couldn't believe what Mary was saying.
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.
The wheel couldn't be repaired.
El hombre caído no se podía levantar.
The fallen man couldn't get up.
Sin hablar el idioma, no se podía hacer nada aquí.
Without speaking the language, you couldn't do anything here.
— P.K. (Peekay) (2014)
Tom no se podía concentrar en su trabajo.
Tom couldn't concentrate on his work.
You couldn't go very fast.