When changing a sentence to present perfect tense, is it compulsory the verb changes tense too. For instance 'David begins his training today' changes to 'David has begun his training already'. Does the sentence 'David runs every day' changes to 'David has run as many as five miles today' or 'David has ran as many as five miles today'
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closed as general reference by RegDwigнt♦ Mar 12 '12 at 9:42
This question is too basic; it can be definitively and permanently answered by a single link to a standard internet reference source designed specifically to find that type of information.If this question can be reworded to fit the rules in the help center, please edit the question.
It is compulsory that you use a past participle. The present perfect tense is formed with the verb have in the present tense and a past participle. Usually the past participle shares its form with the past tense and is constructed with an -ed ending (e.g., she has worked...). In some cases, though, the past participle will be the same form as the bare present tense (e.g., she has hit...), and occasionally it will have its own unique form (e.g., she has begun...).