I had never seen him/it
Je ne l'avais jamais vu auparavant.
I had never seen it before.
Je ne l'avais jamais vu pleurer.
I had never seen him cry.
Je ne l'avais jamais vu avant.
I had never seen it before.
Je ne l'avais jamais vu sous cet angle.
I had never seen it from this angle.
Je ne l'avais jamais vu de ma vie.
I had never seen him in my life.
No, I had never seen it.
I had never seen him.
Je ne l'avais jamais vu faire ça.
I'd never seen him do that.