I
would have prognosticated
you
would have prognosticated
he / she / it
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we
would have prognosticated
you
would have prognosticated
they
would have prognosticated
I
would have been prognosticating
you
would have been prognosticating
he / she / it
would have been prognosticating
we
would have been prognosticating
you
would have been prognosticating
they
would have been prognosticating