MASCULINE FEMININE NEUTER SINGULAR NOM. insanus insana insanum GEN. insani insanae insani DAT. insano insanae insano ACC. insanum insanam insanum ABL. insano insana insano PLURAL NOM. insani insanae insana GEN. insanorum insanarum insanorum DAT. insanis insanis insanis ACC. insanos insanas insana ABL. insanis insanis insanis