The 1040-PR is the same as a 1040 form in English.
https://apps.irs.gov/app/picklist/list/formsPublications.html
The 1040-PR is the Spanish version of the 1040-SS, both different than the 1040 itself.
https://www.irs.gov/pub/irs-pdf/f1040ss.pdf
https://www.irs.gov/pub/irs-pdf/f1040pr.pdf