This document provides rules for conjugating regular verbs in English for the present, past, and future tenses. In the present tense, verbs take an 's' ending when the subject is he, she, or it. Verbs ending in s, x, z, ch, or sh add 'es'. Verbs ending in y change to i and add es if preceded by a consonant. In the past tense, most verbs add 'ed', while some double the final consonant or just add 'd'. The future tense uses will or shall with the basic verb form.