hubieran reconciliado
-they/you had reconciled
Past perfect subjunctive ellos/ellas/ustedes conjugation of reconciliar.

reconciliar

Se preocupó un poco, pero recibió a cambio una carta de su hermana, quien estaba muy contenta de que se hubieran reconciliado.
She worried a little, but by return mail came a letter from her sister, and her sister was so glad they were to be reconciled.
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