Usage Examples
[Present Indicative] Te prometo que llegaré a tiempo. → I promise you that I will arrive on time.
[Present Perfect] He prometido ayudar a mi hermano. → I have promised to help my brother.
[Imperfect Indicative] Él prometía mucho cuando era estudiante. → He showed (used to promise) a lot of potential when he was a student.
[Pluperfect Indicative] Ya le había prometido el cargo a otra persona. → He had already promised the position to someone else.
[Preterite] Prometí guardar el secreto. → I promised to keep the secret.
[Preterite Anterior] Apenas hubo prometido enmienda, volvió a fallar. → As soon as he had promised amendment, he failed again.
[Future] Te prometeré lo que quieras si me ayudas. → I will promise you whatever you want if you help me.
[Future Perfect] Para el lunes habré prometido mi apoyo a la campaña. → By Monday I will have promised my support to the campaign.
[Conditional] Prometería cualquier cosa por verte feliz. → I would promise anything to see you happy.
[Conditional Perfect] Habría prometido asistir si hubiera podido. → I would have promised to attend if I had been able to.