imposible

Es imposible terminar todo el trabajo en un solo dia.

It is impossible to finish all the work in a single day.

Me parece imposible que no lo hayas visto antes.

I find it impossible that you have not seen it before.

Nada es imposible si trabajas duro y no te paras.

Nothing is impossible if you work hard and do not stop.

Resultaba imposible escuchar la música con tanto ruido en la calle.

It was impossible to hear the music with so much noise in the street.

Para él era imposible decir que no a sus hijos.

For him it was impossible to say no to his children.