sabía que ibas a

I knew you were going to

→ saber
phrase Common #9,348
I knew you were going to Followed by an infinitive to say what someone was going to do.
SP: Sabía que ibas a llegar temprano.
EN: I knew you were going to arrive early.

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 decir eso.

I knew you were going to say that.

— Haz lo correcto (1989)

Sabía que ibas a reírte.

I knew you were going to laugh.

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.

Perdoname, pero no sabía que ibas a celebrar.

Sorry, but I didn’t know you were going to celebrate.

— La historia oficial (1985)

Sabía que ibas a venir.

I knew you were coming.

Sabía que ibas a poder.

I knew you could do it.

Sabía que ibas a estar aquí.

I knew you were going to be here.