hubieran constatado
-they/you had confirmed
Past perfect subjunctiveellos/ellas/ustedesconjugation ofconstatar.

constatar

En caso de incoarse dicho procedimiento, la autoridad competente de que se trate informará a las autoridades competentes de los Estados miembros en los que se hubieran constatado las infracciones.
In the event that such proceedings are brought, the competent authority in question shall inform the competent authorities of the Member States in which the infringements were ascertained thereof.
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