PRESENTE PERFECTO
PRESENT PERFECT The present perfect in English is formed using the present tense of the verb have (haber) as auxiliary and the participle of the main verb . The negative contraction of have not is haven't and has not is hasn't . The affirmative contraction is formed by joining the pronoun and the auxiliary have or has. This contraction is only used in the affirmative form, and always accompanied by the participle EXAMPLES Present perfect tense can be used with expressions that are unspecific in time: I have lost my purse. We have seen this movie already. He has broken his leg. There has been an accident. Some examples of present perfect tense used to express an unfinished period of time are: We haven't seen her today. They have been to the mall twice this month. She has watched that show three times this week. Examples of using present perfect in talking about events that happened in the recent past but the effect of the recent event is still f...