créchassent third-person plural imperfect subjunctive of crécher...
créchât /kʁe.ʃa/ créchassions /kʁe.ʃa.sjɔ̃/ créchassiez /kʁe.ʃa.sje/ créchassent /kʁe.ʃas/ (compound tenses) past present subjunctive of avoir + past...