hubieran aliviado
-they/you had relieved
Antecopréterito de subjuntivo para el sujeto ellos/ellas/ustedes del verbo aliviar.

aliviar

A John Kennedy le privaron de su vida; y parecía que a Bobby casi le hubieran aliviado la suya.
John Kennedy was robbed of his young life; Bobby seemed almost to have been relieved of his.
Palabra del día
el dormilón