Perhaps you should try some spelling variations:
perpetuated » perpetuate, perpetuating, perpetuation, perpetualted, perpetuateted, perpetuumted
perpetually » perceptually, perpetual, perpetuallly, perpetuatelly, perpetuumlly
perpetua » perpetual, perpetuate, perpetuum
perpetualte » perpetuallte, perpetuatelte, perpetuumlte, perpetuate, perpetuality, perpetual

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 perpetualte).
• Adding a wildcard symbol may retrieve word variants: ((perpetuated or (perpetually or perpetua)) or perpetualte)*.