hayan descontaminado
Present perfect subjunctiveellos/ellas/ustedesconjugation ofdescontaminar.

descontaminar

Personalmente considero que la sede del Parlamento Europeo en Estrasburgo no debe utilizarse hasta que se retire apropiadamente todo el amianto y las instalaciones se hayan descontaminado por completo.
It is my opinion that the European Parliament in Strasbourg must not be used unless and until all asbestos is appropriately removed and the buildings have been thoroughly decontaminated.
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