(v.) = become ; grow up to be ; metamorphose.
Ex: Some degree of ignorance of this kind is not unusual since the usual objective in consulting an information source is to become better informed. Ex: Quite obviously, however, everything rests in the end on the extent to which people grow up to be avid, thoughtful readers. Ex: Each of these three standards metamorphosed and had an impact far beyond the anticipation of all but the most far-sighted.

The following video provides you with the correct English pronunciation of the word "se convertían", to help you become a better English speaker.

v. convert; adapt; turn

verwandelten sich