certificarto certifyregular verb certific· ar AR Present Subjunctive Preterite Imp.Subj. Future Conditional Imperfect yo tú él nosotros vosotros ellos certific o certifiqu e certifiqu é certific ara certific aré certific aría certific aba certific as certifiqu es certific aste certific aras certific arás certific arías certific abas certific a certifiqu e certific ó certific ara certific ará certific aría certific aba certific amos certifiqu emos certific amos certific áramos certific aremos certific aríamos certific ábamos certific áis certifiqu éis certific asteis certific arais certific aréis certific aríais certific abais certific an certifiqu en certific aron certific aran certific arán certific arían certific aban Gerund: certific ando Participle: certific ado spelling changes: c → qu before e/i