Skrócone formy przeczące w czasie Present Perfect Continuous

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questão		resposta
I começar a aprender		haven't been (doing)
you começar a aprender		haven't been (doing)
he/she/it começar a aprender		hasn't been (doing)
we começar a aprender		haven't been (doing)
you começar a aprender		haven't been (doing)
they começar a aprender		haven't been (doing)
Pytania z operatorem 'have' começar a aprender		tworzymy przez inwersję.

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