Completar frases Present simpleVersión en línea Oraciones por Ricardo Puente 1 do third single negative after pronoun contraction verb person In simple present the auxiliary verb forms / does are part of the sentences They are included in question and sentences . The verbs in afirmative sentences need to add ending s / es to the person forms . Example : love / loves and play / plays . The third person include sentences in which the person who performs the action is a single person different to us or the that is listening us or when we use the he , she or it . In negative sentences the auxiliary does is used for the third person forms including not or the doesn't before the main verb . For plural personal pronouns and pronouns I or you we use auxiliary do or do not or contraction don't . In all sentences with auxiliary verb the main has no change . For questions the auxiliar verb is before any word and WH words and mantain the corresponding form for the pronouns he , she , or i t