The document discusses the past simple tense in English. It describes two types of verbs in the past simple: regular verbs that form the past tense by adding "-ed" and irregular verbs that change their spelling or pronunciation. Regular verbs follow patterns like doubling consonants or just adding "-d" depending on their ending. Irregular verb forms often change vowels from the infinitive form. Examples of common irregular verb patterns are provided. The use of the past simple to describe completed past actions and sequences of events is explained. Formation of negative sentences and yes/no questions in the past simple is also covered, distinguishing patterns for regular and irregular verbs as well as for the verb "to be".

1. THE PAST SIMPLE Thawanrat Chaikanapiboon

17. WELL DONE!!