This document provides a summary of key grammar concepts in Spanish including: 1) The difference between qué and cuál and their uses in questions. 2) How to use estar to talk about actions with -ing verbs and locations or emotions. 3) How to use gustar to talk about likes and adding emphasis. 4) Common transitions words and their meanings. 5) Conjugations for the preterite or imperfect tenses of verbs. 6) Triggers words that indicate frequency for actions in the past. 7) How to use acabar de + infinitive to talk about recent actions. 8) How to use hace + time + que