This document provides an outline of key grammar concepts in Spanish including: 1. Present tense verb conjugations for -ar, -er, and -ir verbs. 2. Stem-changing and irregular verbs like tener, conocer, and dar. 3. Uses of saber vs conocer, reflexive verbs, and the impersonal se. 4. Verb conjugations with diphthongs, endings like -uir/-guir, -cer/-cir, -ger/-gir, and verbs like gustar. 5. Uses of hace + time + que + present tense and explanations of el imperfecto and el preterito verb tenses.