déclenchés

In a sentence

• Les alarmes ont été déclenchées par le mouvement dans la pièce.

  The alarms were triggered by the movement in the room.

  In this sentence, 'déclenchées' refers to alarms being activated due to an external cause. The past perfect tense is used to indicate an event that has already occurred.

• Ces événements ont déclenché une série de réactions imprévues.

  These events triggered a series of unexpected reactions.

  Here, 'déclenché' illustrates the cause of subsequent reactions, denoting initiation or activation of effects. It demonstrates the verb's use in the context of causation.

• Il a déclenché la machine en appuyant sur le bouton.

  He activated the machine by pressing the button.

  In this example, 'déclenché' describes the act of physically turning on or starting a machine. It is used in a more literal sense of causing an object or process to commence.