con todo su corazón

with all their heart

→ con
phrase Rare #42,380
with all their heart An emphatic expression meaning with complete love, sincerity, or devotion. The possessive can change to match the person: con todo mi corazón, con todo tu corazón, etc.
SP: Él ayudó a su familia con todo su corazón.
EN: He helped his family with all his heart.

Orando con todo su corazón ella pasó por debajo de la puerta del santuario.

Praying with all her heart, she passed beneath the sanctuary door.

— El tiempo contigo (2019)

Tom ama a Mary con todo su corazón.

Tom loves Mary with all his heart.

Tom amaba a Mary con todo su corazón.

Tom loved Mary with all his heart.

Ella cantó con todo su corazón.

She sang with all her heart.

Ella lo amaba con todo su corazón.

She loved him with all her heart.