mantuvo su promesa

kept his promise

→ mantener
phrase Uncommon #19,252
kept his promise Also means "kept her promise" depending on the subject. It is the past tense of "mantener su promesa".
SP: Sara mantuvo su promesa y llegó temprano.
EN: Sara kept her promise and arrived early.

Tom no mantuvo su promesa.

Tom didn't keep his promise.

Eisenhower mantuvo su promesa.

Eisenhower kept his promise.

Tom no mantuvo su promesa de ayudar a Mary.

Tom didn't keep his promise to help Mary.

Cleopatra mantuvo su promesa con Númerobis.

Cleopatra kept her promise to Númerobis.

— Astérix y Obélix: Misión Cleopatra (2002)

Él mantuvo su promesa.

He kept his promise.

Tomás mantuvo su promesa.

Thomas kept his promise.

Roosevelt mantuvo su promesa.

Roosevelt kept his promise.

Ella mantuvo su promesa.

She kept her promise.