| A | B |
|---|
| Present stem | present active infinitive minus -re |
| Second Principal Part | Present active infinitive |
| Third Principal Part | Perfect tense, 1st person, singular active |
| Fourth Principal Part | Perfect passive participle |
| Perfect stem | 3rd principal part minus -i |
| Perfect passive or Participial stem | 4th principal part minus the gender ending -us |
| Personal endings for all active tenses exc. perfect | -o/-m, -s, -t, -mus, -tis, -nt |
| Personal endings perfect tense | -i, -isti, -it, -imus, -istis, -erunt |
| First declension endings | -a, -ae, -ae, -am, -a; -ae, -arum, -is, -as, -is |
| Stem of a noun | genitive singular minus genitive ending |
| 2nd declension masculine endings | -us/-er, -i, -o, -um, -o; -i, -orum, -is, -os, -is |
| 2nd declension neuter endings | -um, -i, -o, -um, -o; -a, -orum, -is, -a, -is |
| 1st decl. nom. sing. | -a |
| 1st decl. gen. sing. | -ae |
| 1st decl. dative, sing. | -ae |
| 1st decl. accus. sing. | -am |
| 1st decl. ablative sing. | -a (with long mark) |
| 1st decl. nom. plural | -ae |
| 1st decl. gen. plural | -arum |
| 1st decl. dative plural | -is |
| 1st decl. accus. plural | -as |
| 1st decl. ablative plural | -is |
| 1st decl. vocative sing. | -a |
| 1st decl. vocative plural | -ae |
| 2nd decl. nom. sing. masc. | -us/-er |
| 2nd decl. gen. sing. | -i |
| 2nd decl. dat. sing. | -o |
| 2nd decl. accus. sing. masc. | -um |
| 2nd decl. ablative, sing. | -o |
| 2nd decl. nom. plur. masc. | -i |
| 2nd decl. nom. plur. neuter | -a |
| 2nd decl. gen. plural | -orum |
| 2nd decl. dat. plural | -is |
| 2nd decl. accus. plural, masc. | -os |
| 2nd decl. accus. plural, neuter | -a |
| 2nd decl. ablative plural | -is |
| 2nd decl. vocative singular for words ending in -us | -e |
| 2nd declension vocative singular for words ending in -ius | -i |
| 2nd decl. vocative singular for words not ending in -us or -ius | same as nominative |
