hubieran alternado
-they/you had alternated
Past perfect subjunctiveellos/ellas/ustedesconjugation ofalternar.

alternar

Nada de esto parece satisfactorio, aunque hubieran alternado trucos a los fenómenos, por razones financieras.
None of this seems satisfactory, though the phenomena may have been sneaky tricks, for financial reasons.
La alcaldesa electa, María Gloria Sánchez, había sido expulsada del municipio por pobladores que rechazaban que ella y su esposo se hubieran alternado el poder durante tres periodos de gobierno, primero por el PRI, y, en este último periodo, por el Verde Ecologista.
The elected mayoress, Maria Gloria Sanchez, had been expelled from the municipality by residents who rejected her and her husband who alternated power for three terms of office, first by the PRI, and, in this last term, by the Green Ecologist Party.
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