hayan complementado
-they/you have complemented
Present perfect subjunctiveellos/ellas/ustedesconjugation ofcomplementar.

complementar

El hecho de que, tanto por su origen como por la plasmación organizativa y funcional posterior, se hayan complementado tan bien estas dos dimensiones social e institucional, resulta clave para entender la vitalidad e idiosincrasia de dicho ente.
The fact that the institution's origin as well as its later organisational and functional reality complemented these social and institutional dimensions is key to be able to understand its vitality and its idiosyncrasies.
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