This document discusses verb tenses and how to change verbs from present to past and future forms. It explains that there are three main verb tenses - past, present, and future. For past tense, most verbs end in "ed" but there are some spelling changes. Present tense verbs often end in "s", "ing", or "es". Future tense uses the helping verb "will" plus the base verb form. It then provides examples and rules for changing present tense verbs to past tense by adding "-ed", doubling consonants, dropping "e", changing "y" to "i", or changing spelling.