I lent him/her
Ella había olvidado su paraguas así que le presté el mío.
She had forgotten her umbrella so I lent her mine.
No le presté el teléfono a mi hijo.
I didn't lend my son the phone.
A Tom le presté el libro que me diste.
I lent Tom the book you gave me.
No le presté suficiente atención y por eso cometí tantos errores.
I didn't pay enough attention, and that's why I made so many mistakes.
Le presté mi abrigo a un amigo de mi hermano.
I lent my coat to a friend of my brother.