4 Study the examples in exercises 2 and 3. Then choose the correct words in the rules. O RULES 1. The past simple form of a verb is the same / different for all persons. 2 In negative sentences, we use didn't + the verb in the base form/ past simple. 3 In questions, we use (question word) did + noun or pronoun + the verb in the base form / past simple. More practice Workbook page 27​