Usage Examples
[Present Indicative] Sustituyo el azúcar por miel en mis recetas. → I substitute sugar for honey in my recipes.
[Present Perfect] El entrenador ha sustituido al delantero lesionado. → The coach has substituted the injured forward.
[Imperfect Indicative] Antes sustituían a los trabajadores por máquinas. → Previously they used to replace workers with machines.
[Pluperfect Indicative] Ya habían sustituido la cerradura cuando llegamos a casa. → They had already replaced the lock when we arrived home.
[Preterite] Sustituí la bombilla fundida esta mañana. → I replaced the blown bulb this morning.
[Preterite Anterior] Apenas hubo sustituido la pieza rota, el motor arrancó. → As soon as he had replaced the broken part, the engine started.
[Future] Las máquinas sustituirán a los humanos en tareas peligrosas. → Machines will substitute humans in dangerous tasks.
[Future Perfect] Para el año que viene, ya habrán sustituido toda la flota de buses. → By next year, they will have already replaced the entire bus fleet.
[Conditional] Yo no sustituiría mi viejo coche todavía. → I wouldn't replace my old car just yet.
[Conditional Perfect] Habría sustituido el cristal si hubiera tenido tiempo. → I would have replaced the glass if I had had time.