SVER1A.DAT,Level 1 Verbs SVER1B.DAT,Level 1 Verbs SVER1C.DAT,Level 1 Verbs SVER1D.DAT,Level 1 Verbs SVER2A.DAT,Level 2 Verbs SVER2B.DAT,Level 2 Verbs SVER3A.DAT,Level 3 Verbs SVER3B.DAT,Level 3 Verbs SVER3C.DAT,Level 3 Verbs SVER3D.DAT,Level 3 Verbs