The name "present perfect" reflects the fact that the auxiliary verb, "to have," is conjugated in its present-tense forms. Some verbs long ago used "to be" as the auxiliary, and we find vestiges of this structure in biblical English or old nursery rhymes: The Lord is risen. For He is come. Elsie Marley is grown so fine, she won't get up to feed
There are three perfect progressive tenses: the present perfect progressive, the past perfect progressive, and the future perfect progressive. It had been snowing for two days before it stopped
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5 sentences of present perfect tense