This document summarizes Spanish verb conjugations in the preterite tense. It outlines:
1) Regular AR, ER, and IR verb endings with accent marks.
2) Spelling changes for -car, -gar, -zar verbs and irregular verbs like ser, ir, dar, and ver.
3) "JUVI" verbs which are irregular and have unique stem changes and endings without accent marks. These include poder, poner, saber, andar, estar, tener, querer, venir, hacer, and decir verbs.