nunca la he visto

I've never seen her

→ nunca
phrase Uncommon #21,146
I've never seen her La can mean “her” or “it,” depending on context. The related form nunca la había visto means “I had never seen her/it.”
SP: Nunca la he visto en persona.
EN: I've never seen her in person.

Nunca la he visto por aquí.

I've never seen her around here.

Nunca la he visto, en realidad.

I've never actually seen her.

, nunca la he visto.

Yes, I've never seen her.

— La gran enfermedad del amor (2017)

Estoy seguro de que nunca la he visto.

I'm sure I've never seen her.

Nunca la he visto en mi vida.

I've never seen her in my life.

Nunca la he visto reír.

I've never seen her laugh.

Nunca la he visto cara a cara.

I've never met her face-to-face.

Nunca la he visto.

I've never seen her.

— La ciudad de las estrellas (La La Land) (2016)