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Present Simple Verb Tense ChartWhat is the structure of the Present Simple Tense?
Grammar rules for the present simple tense: In positive sentences the auxiliary verb is not used. In positive sentence the main verb changes form according to the subject. In negative statements the auxiliary verb "do-does" is added after the subject. In negative statements and questions the main verb stays in its base form. In negative statements and questions but the auxiliary verb changes form according to the subject.
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