Perhaps you should try some spelling variations:
perpetuated » perpetuating, perpetuation, perpetualted, perpetuumted, perpetuald, perpetuatingd
perpetually » perceptually, perpetual, perpetuallly, perpetuumlly
perpetua » perpetual, perpetuum
perpetuate » perpetualte, perpetuumte, perpetual, perpetuating

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((perpetuated OR (perpetually OR perpetua)) OR perpetuate).
• Adding a wildcard symbol may retrieve word variants: ((perpetuated or (perpetually or perpetua)) or perpetuate)*.