koopererii is the indicative past 3 sg of koopereret.

koopereretV

Lule Sámi

kooperieritV

North Sámi – Lule Sámidict-sme-smj/src/all_smesmj.xml:84272Edit on GitHub Suggest

indicative past
Case	Sg	Pl
1
2
3	koopererii	koopererejedje / kooperereje

Full paradigm · 19 forms

conditional present
Case	Sg	Du	Pl
1
2
3	koopererelii / koopererešii	kooperereleigga / koopererešeigga	kooperereledje / koopererele / koopererešedje / kooperereše