MASCULINE FEMININE NEUTER SINGULAR NOM. improvisus improvisa improvisum GEN. improvisi improvisae improvisi DAT. improviso improvisae improviso ACC. improvisum improvisam improvisum ABL. improviso improvisa improviso PLURAL NOM. improvisi improvisae improvisa GEN. improvisorum improvisarum improvisorum DAT. improvisis improvisis improvisis ACC. improvisos improvisas improvisa ABL. improvisis improvisis improvisis