Possible Results:
había robustecido
-I had strengthened
Past perfect yo conjugation of robustecer.
había robustecido
-he/she/you had strengthened
Past perfect él/ella/usted conjugation of robustecer.

robustecer

Las masas se han vuelto más prudentes, la disciplina se había robustecido, al parecer.
The masses had become more cautious, they had acquired a certain amount of discipline.
Word of the Day
marzipan