Question

como fica a frase na forma negativa form e interrogativa form em ingles He is studying english literature​

Answer 1

negative:
He isn't studying english literature

interrogative:
Is he studying english literature?

Answer 2

He isn’t (is not abreviado) studying English literature - negativo

Is he studying English literature? - interrogativo (é só trocar de lugar o sujeito com o verbo to be, que nesse caso, vai na frente)