I-Stem
-3rd Declension ONLY
-Ends in es/is in Nom. form AND parasyllabic (equal syllables)
clades, cladis
--Double consonants in the ending of the stem AND monosyllabic in Nom.
mons, montis
***mater, matris- NOT I-stem because it is NOT monosyllabic in the Nom. form
-Ends in es/is in Nom. form AND parasyllabic (equal syllables)
clades, cladis
--Double consonants in the ending of the stem AND monosyllabic in Nom.
mons, montis
***mater, matris- NOT I-stem because it is NOT monosyllabic in the Nom. form