estaba seguro de que

was sure that

→ estar
phrase Uncommon #21,830
was sure that Used to say someone was confident or certain about something. Often followed by a clause with que.
SP: Estaba seguro de que llegaría a tiempo.
EN: I was sure that he would arrive on time.

Estaba seguro de que te encontraría aquí.

I was sure I would find you here.

Él estaba seguro de que algún día haría un nuevo descubrimiento.

He was sure that one day he would make a new discovery.

No estaba seguro de que el testigo sabía que el Coronel se suicidó.

He wasn't sure that the witness knew the Colonel had committed suicide.

— Algunos hombres buenos (1992)

Tom estaba seguro de que María no sabía conducir un auto.

Tom was sure that María didn’t know how to drive a car.

Estaba seguro de que a Tom lo habían secuestrado.

He was sure that Tom had been kidnapped.

Estaba seguro de que no te iba a gustar.

I was sure you wouldn't like it.

El presidente estaba seguro de que habría una guerra.

The president was certain there would be a war.

Ayer vino a casa borracho, y él estaba seguro de que está bien.

He came home drunk yesterday, and he was sure he was fine.

— El síndrome asténico (1989)

Yo estaba seguro de que usted no iba a poder.

I was sure you wouldn't be able to.

— El secreto de sus ojos (2009)

No estaba seguro de que estarías feliz de verme.

I wasn't sure you'd be happy to see me.

Tom estaba seguro de que venían tiempos mejores.

Tom was sure that better times were coming.

Tom no estaba seguro de que quería hacer eso.

Tom wasn’t sure he wanted to do that.

Estaba seguro de que había muerto.

I was sure he was dead.

— Reservoir Dogs (1992)

El Comandante estaba seguro de que seguían órdenes.

The Commander was sure they were following orders.

— Tropa de élite (2007)

Osman estaba seguro de que iban a morirse.

Osman was sure they were going to die.

— El prisionero de las montañas (1996)