QUICK ANSWER
"I have returned" is a phrase which is often translated as "he vuelto", and "I'm back" is a phrase which is also often translated as "he vuelto". Learn more about the difference between "I have returned" and "I'm back" below.
I have returned(
ay
hahv
ri
-
tuhrnd
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. he vuelto
I have returned to Italy twice since then.He vuelto a Italia dos veces desde aquel entonces.
I'm back(
aym
bahk
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. he vuelto
I was in Mexico for a couple of years, but now I'm back.Estuve en México por un par de años, pero ahora he vuelto.
b. he regresado
I'm back from the war, and I have never felt so happy.He regresado de la guerra, y jamás me he sentido tan feliz.
c. estoy de vuelta
I'm back from school! Do you want to do something?¡Estoy de vuelta de la escuela! ¿Quieres hacer algo?