they will have changed
-auront changé
Future perfect they conjugation of change.

change

To detect the movement of asteroids, we need images of the night sky that were taken some time apart, so that they will have changed position between images.
Pour détecter le mouvement des astéroïdes, on a besoin d’images du ciel prises à des moments différents de la nuit pour que la position des astéroïdes ait changé dans l’intervalle.
They will have changed perceptions when they return home, and hopefully will share their new intercultural experience with others.
Ils auront une perception différente en rentrant chez eux et, nous l'espérons, partageront leur nouvelle expérience interculturelle avec d'autres.
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