he notado

I've noticed

→ haber
phrase Uncommon #15,565
I've noticed Used with a past observation or realization made by the speaker.
SP: He notado que tu español ha mejorado mucho.
EN: I've noticed that your Spanish has improved a lot.

Yo también lo he notado últimamente.

I've noticed it lately too.

— La ola (2008)

Nunca lo he notado.

I've never noticed it.

No creas que no he notado, como lo miras llena de lujuria.

Don't think I haven't noticed how you look at him, full of lust.

— La bruja (2016)

Eso es lo que he notado al estar aquí.

That's what I've noticed being here.

He notado que todos los que están a favor del aborto ya han nacido.

I've noticed that everyone who is pro-abortion has already been born.

También he notado esto.

I've noticed this too.

Y, como he notado, su ropa interior no es para esta estación del año.

And, as I've noticed, her underwear isn't suitable for this time of year.

— La ironía del destino, o goce de su baño (1976)

Lo he notado.

I've noticed it.

— El manantial de las colinas (1986)

No, Buggin Out, no he notado nada.

No, Buggin Out, I haven't noticed anything.

— Haz lo que debas (1989)