§171. The Four Conjugations
Verbs are classed in Four Regular Conjugations, distinguished by the stem-vowel which appears before -re in the Present Infinitive Active:—
| CONJUGATION | INFINITIVE ENDING | STEM |
| First | -āre (am āre) | ā |
| Second | -ēre (mon ēre) | ē |
| Third | -ĕre (reg ĕre) | ĕ |
| Fourth | -īre (aud īre) | ī |
J. H. Allen and J. B. Greenough, New Latin Grammar (Boston: Ginn, 1903). Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities.