Posso dizer This sentence is called a Xem vez de This sentence is what's called a X?
Resposta do falante nativo
Rebecca
Sim, você pode dizer this sentence is called a mnemonic deviceem vez de This sentence is what's called a mnemonic device. A estrutura frasal de This sentence is actually what's called a mnemonic deviceé expressa desta forma para tornar esta frase mais interessante, e this sentence is called a mnemonic devicetem o mesmo significado.