tú avisarte

to let you know, to tell you

→ avisar
avisar to let (someone) know, to notify + te you
verb · second Rare #39,668
to let you know, to tell you Infinitive with an attached indirect object pronoun: avisar + te (“to you”).
SP: Quiero avisarte que llego tarde.
EN: I want to let you know that I'm arriving late.
Conjugation of avisar

Solo quise avisarte.

I just wanted to warn you.

Solo quería avisarte.

I just wanted to let you know.

El Sargento me envió a avisarte lo de la otra casa.

The Sergeant sent me to warn you about the other house.

— El botín (2026)

Escucha, yo iba a avisarte.

Listen, I was going to warn you.

— Tropa de élite 2 (2010)

Quiero avisarte que voy a casa para su cumpleaños.

I want to let you know that I'm coming home for his birthday.

— Un día de furia (1993)

Y un momento antes de cerrar los ojos, dijo a tu madre que no debía avisarte.

And just before closing his eyes, he told your mother that she shouldn’t tell you.

— Cinema Paradiso (1988)