vieren
-they will see
The word vieren is the future subjunctive form of ver in the third person plural.
See the full ver conjugation

ver

Pero lo que realmente me rompe el corazón es que tu no estarás ahí para los momentos que vieren.
But what really breaks my heart is that you won't be there for all the moments to come.
Y será que todos los que te vieren, se apartarán de ti, y dirán: Nínive es asolada: ¿quién se compadecerá de ella? ¿dónde te buscaré consoladores?
And it will come about that all who see you will go in flight from you and say, Nineveh is made waste: who will be weeping for her? where am I to get comforters for her?
De considerarlo apropiado, y previa consulta al Reino Unido si las zonas de soberanía se vieren afectadas, la Comisión podrá proponer modificaciones al presente Reglamento con objeto de hacerlo compatible con las normativas nacionales y de la UE aplicables a la línea.
If appropriate, and after consultation with the United Kingdom if the Sovereign Base Areas are affected, the Commission may propose modifications to this Regulation in order to secure compatibility of national and EU rules applicable to the line.
Si excepcionalmente se vieren impedidos de asistir a una reunión del Comité tanto el representante como el suplente, el representante podrá otorgar delegación de poderes a otro representante o hacerse representar por un tercero, expresamente nombrado para esa ocasión por el Estado miembro.
Under exceptional circumstances, where neither the representative nor the alternate can attend a meeting of the Committee, the representative may give a proxy to another representative, or may be replaced by a third person to be appointed ad hoc by the Member State.
En términos teóricos, la categoría está bien definida y comprende a los jefes de Estado que se vieren obligados a salir de sus países, a causa de ocupación bélica o de disturbios o desórdenes civiles, pero a quienes se sigue considerando como titulares de dicho cargo.
In theoretical terms, the category is well-defined and includes those heads of State that were forced to leave their country, either because of belligerent occupation or internal unrest or upheaval, but continue to be considered as holding that position.
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