The document discusses different ways to form the simple past tense in English. It explains how to add "-ed", "-d", or double the final consonant and add "-ed" for many verbs. For verbs ending in "y", the "y" is usually changed to "ied". There are some exceptions where only "-ed" is added. Examples are provided to illustrate each rule. The document concludes with a simple past tense test asking the reader to apply the rules.