Formula of Present Indefinite Tense-How to derive it
lenglishgrammar.com › 2022 › 08Aug 14, 2022 · Formula Of Present Indefinite Tense for Interrogative Sentences. According to the rule, write helping verb (do/does) at the start ending with question mark. Do/does + S + 1V + O ? Formula Of Present Indefinite Tense for Interro-negative Sentences. Simply, pick the helping verb (do/does) from negative sentence and place at the start of the sentence ending with question mark.