English -Grammar - Present-Perfect-Tense

English Grammar – Present Perfect Tense

In this tense the third form of the verb past participle (V3) is used. Auxiliary verbs used in this tense: Have & has The formula for present perfect (Positive) is Subject +Auxiliary Verb + V3 (Past Participle Form). For “write” past participle is “written”. Positive                           Negative                        Interrogative I have written. I have not written. Have I written? We...