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in the PONS Dictionary

certifier [sɛʀtifje] VB trans

1. certifier:

certifier

2. certifier LAW, ADMIN:

certifier
certifier une copie conforme
Présent
jecertifie
tucertifies
il/elle/oncertifie
nouscertifions
vouscertifiez
ils/ellescertifient
Imparfait
jecertifiais
tucertifiais
il/elle/oncertifiait
nouscertifiions
vouscertifiiez
ils/ellescertifiaient
Passé simple
jecertifiai
tucertifias
il/elle/oncertifia
nouscertifiâmes
vouscertifiâtes
ils/ellescertifièrent
Futur simple
jecertifierai
tucertifieras
il/elle/oncertifiera
nouscertifierons
vouscertifierez
ils/ellescertifieront