retornarán

In a sentence

• Los pájaros retornarán en la primavera.

  The birds will return in the spring.

  In this sentence, 'retornarán' is used in the future tense to indicate an action (returning) that will happen in the future.

• Cuando el sol se ponga, retornarán a sus hogares.

  When the sun sets, they will return to their homes.

  Here, 'retornarán' conveys a future action, specifically tied to a conditional clause suggesting the timing of their return.

• Aunque las cosas están calmadas ahora, eventualmente los problemas retornarán.

  Although things are calm now, eventually the problems will return.

  In this context, 'retornarán' is metaphorically applied to signify that issues will come back in a future time, extending its usage beyond physical returning to abstract concepts.