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He hasn't told me anything.

He doesn't have told me anything.

She has arrived.

She does have arrived.

While with the possessive have I can use the empathic do:

He does have a car.

She does have a cat

I know I might sound dumb but I just asked it out of curiosity :3

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You can't use the emphatic do in the present perfect because it is the auxiliary verb which is used for the Present Simple tense.

In the sentences "He does have a car" and "She does have a cat," have is the main verb, while do is auxiliary used in the affirmative sentences for emphasis.

Have can function as a main verb or as an auxiliary verb too. In present perfect sentences have/has is the auxiliary verb.

We don't use 2 auxiliary verbs in a sentence like that. That's why "he doesn't have told me anything" makes no sense.

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  • Thank you btw you made a typo. You were to say “you cant" I guess :3 – Stewart Gilligan Griffin Nov 17 '19 at 15:18
  • @StewartGilliganGriffin No, I really meant "have" can function as a main verb or as an auxiliary verb. For example, in "I have a car" "have" is the main verb" and in "I have done it" "have" is auxiliary. – Enguroo Nov 17 '19 at 15:24
  • I know that. Re read your answer please. You wrote can's – Stewart Gilligan Griffin Nov 17 '19 at 15:25
  • @StewartGilliganGriffin oh, that's right! Thank you! – Enguroo Nov 17 '19 at 15:32
  • I think the way native speakers of English – I am not one – would put emphasis on a present perfect is simply by stressing the auxiliary "have/has" in speech, and italicizing it in writing. – user58319 Dec 8 '19 at 20:08

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