| Nominativ | clemens, clemes | clementia, clemencia, clementes |
| Genitiv | clementis, clementissimi, clementissimis, clementissimo, clementissimum, clementissimus | clementium, clementum |
| Dativ | clementiaeque, clementinarum, clementiorem, clementiores, clementiori, clementi | clementibus |
| Akkusativ | clemes, clemens, clementem | clementis, clementissimi, clementia, clementissimis, clemencia, clementissimo, clementissimum, clementissimus, clementes |
| Ablativ | clementi, clementiaeque, clementinarum, clemente, clementiorem, clementiores, clementiori | clementibus |
| Vokativ | clemens, clemes | clementia, clemencia, clementes |
