Resultados posibles:
beneficiabas
-you were benefiting
Imperfecto para el sujeto del verbo beneficiar.
beneficiabas
-you were benefiting
Imperfecto para el sujeto vos del verbo beneficiar.

beneficiar

No sé, cuando te beneficiabas de él... te sentías realmente... realmente especial.
I don't know, when you were in his good graces, you felt like you were really... really special.
Palabra del día
la guirnalda