to have followed his advice
Cuando se perdió, deseó haber seguido su consejo.
When he got lost, he wished he had followed her advice.
Deberíamos haber seguido su consejo.
We should have followed his advice.
Deberías de haber seguido su consejo.
You should have followed his advice.
Ella lamentó no haber seguido su consejo.
She regretted not having followed his advice.