How do verbs change in interrogative sentences and negative sentences Do the verbs in interrogative sentences and negative sentences basically change into their original forms? (excluding special cases) Or according to the tense of the sentence? Do you keep the verbs in their original form when you use do and does?

How do verbs change in interrogative sentences and negative sentences Do the verbs in interrogative sentences and negative sentences basically change into their original forms? (excluding special cases) Or according to the tense of the sentence? Do you keep the verbs in their original form when you use do and does?

In negative sentences and interrogative sentences, do / does is generally used as auxiliary verb, and the verb after do / does should become the original form. In affirmative sentences, especially in imperative sentences, do emphasizes the necessity of In fact, do / does is an action verb and an auxiliary verb