you didn't know how to do it
Creía que no sabías cómo hacerlo.
I thought you didn’t know how to do it.
Creí que no sabías cómo hacerlo.
I thought you didn't know how to do it.
Pensaba que no sabías cómo hacerlo.
I thought you didn't know how to do it.
Pensé que no sabías cómo hacerlo.
I thought you didn’t know how to do it.