hubieren arribado
-they/you will have arrived
Future perfect subjunctiveellos/ellas/ustedesconjugation ofarribar.

arribar

En su declaración el Secretario General prometió que se enviarían nuevos contingentes, y que cuando todos hubieren arribado, el componente militar de la UNAMSIL probablemente excedería el nivel máximo autorizado por el Consejo anteriormente este año.
In his statement the Secretary-General had promised that additional troops were on their way, and that when all of them had arrived, the military component of UNAMSIL would probably exceed the maximum authorized by the Council earlier in the year.
Word of the Day
lean