she couldn't
Como ella no pudo pagar el pasaje, el conductor le pidió que se bajara del bus.
Since she couldn't pay the fare, the driver asked her to get off the bus.
She couldn't meet up with him.
Para mi sorpresa, ella no pudo contestar a la pregunta.
To my surprise, she couldn't answer the question.
Anoche ella no pudo dormir para nada.
Last night, she couldn't sleep at all.
Ella no pudo hacer frente a la ansiedad.
She couldn't cope with the anxiety.
Ella no pudo renunciar completamente a sus esperanzas de casarse con él.
She could not completely give up her hopes of marrying him.
Por falta de dinero ella no pudo venir conmigo.
Because of a lack of money, she couldn't come with me.
Ella no pudo convencerlo de aceptar el soborno.
She couldn't convince him to accept the bribe.
She couldn't have done that.
She couldn't go to the wedding.