yo decepcionaré

will disappoint

→ decepcionar
decepcionar to disappoint + é 1st-person singular future
verb · first singular · future indicative Rare #43,187
will disappoint
SP: Te decepcionaré si no cumplo mi promesa.
EN: I will disappoint you if I don't keep my promise.
Conjugation of decepcionar
Indicative future
SingularPlural
First decepcionaré
Subjunctive future
SingularPlural
First decepcionaré

No os decepcionaré.

I won't let you down.

No te decepcionaré.

I won't let you down.

Solo quiero que sepas que no te decepcionaré.

I just want you to know that I won't let you down.

No te decepcionaré otra vez.

I won't let you down again.

— Fearless - Sin miedo (2006)

Nunca te decepcionaré.

I will never disappoint you.