hubieran rociado
-they/you had sprayed
Past perfect subjunctiveellos/ellas/ustedesconjugation ofrociar.

rociar

Las víctimas fueron sobre todo empleados y clientes que corrieron a refugiarse al interior del casino después que los atacantes hubieran rociado la entrada con gasolina y prendido el fuego.
Staff and customers fled further inside the casino after attackers sprayed the entrance with petrol and set it alight. It was one of Mexico's worst attacks on civilians.
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