sabía que ibas a

I knew you were going to

→ saber
phrase Common #9,282
I knew you were going to Used before an infinitive to talk about a predicted future action from the past.
SP: Sabía que ibas a llegar tarde.
EN: I knew you were going to be late.

Sabía que ibas a llegar tarde.

I knew you were going to be late.

Sabía que ibas a entender mi mensaje.

I knew you would understand my message.

Sabía que ibas a preguntar eso.

I knew you were going to ask that.

Sabía que ibas a hacer eso.

I knew you were going to do that.

Sabía que ibas a venir.

I knew you were coming.

Sabía que ibas a decir eso.

I knew you were going to say that.

— Haz lo que debas (1989)

Sabía que ibas a poder.

I knew you could do it.

De verdad, mamá, ni siquiera sabía que ibas a venir.

Honestly, Mom, I didn't even know you were coming.

— Marty Supreme (2025)

Sabía que ibas a estar aquí.

I knew you were going to be here.

Sabía que ibas a reírte.

I knew you were going to laugh.