hubieran supervisado
-they/you had supervised
Past perfect subjunctiveellos/ellas/ustedesconjugation ofsupervisar.

supervisar

Si determinados países interesados hubieran aplicado esas resoluciones plenamente y si se hubieran supervisado con mayor eficacia, los angoleños de todo el país hubieran vivido mejor.
Had those resolutions been fully implemented by some concerned States and supervised more effectively, life could have been made better for all Angolans throughout the country.
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