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I have lived in this house since 20 years ago.
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I have watched since for 19 years.
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I have played videogames since I was 8
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I have been on internet since I was eleven years old.
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I have learnt english since 2002
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I have grown bear since 2015.
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I have driven this car for 4 years.
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I have been in the UTTAB for 2 years
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I have had this computer for one year.
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I haven't used calculus since last four-month period,
